Updated 10 April 2007
001 | NWA 873 | 62 gr. | Erfoud | 2001 | Chondrite H4 |
002 | NWA 874 | 22 gr. | Erfoud | 2001 | Chondrite L5 |
003 | NWA 875 | 22 gr. | Erfoud | 2001 | Chondrite L6 |
004 | NWA 876 | 48 gr. | Erfoud | 2001 | Chondrite H5 |
005 | NWA 877 | 28 gr. | Erfoud | 2001 | Chondrite L5 |
006 | NWA 878 | 20 gr. | Erfoud | 2001 | Chondrite L4 |
007 | NWA 879 | 80 gr. | Erfoud | 2001 | Chondrite LL5 |
008 | NWA 880 | 182 gr. | Erfoud | 2001 | Chondrite H3.9 |
009 | NWA 881 | 424 gr. | Erfoud | 2001 | Chondrite H4 |
010 | NWA 882 | 512 gr. | Erfoud | 2001 | Chondrite L4 |
011 | NWA 883 | 61.2 gr. | Erfoud | 2001 | Chondrite LL5 |
012 | NWA 884 | 110 gr. | Erfoud | 2001 | Chondrite H5 |
013 | NWA 885 | 106 gr. | Erfoud | 2001 | Chondrite L5 |
014 | NWA 886 | 24.4 gr. | Erfoud | 2001 | Chondrite L5 |
015 | NWA 887 | 17.5 gr. | Erfoud | 2001 | Chondrite H4/6 |
016 | NWA 888 | 74.6 gr. | Erfoud | 2001 | Chondrite H4 |
017 | NWA 889 | 70.6 gr. | Erfoud | 2001 | Chondrite L5 |
018 | NWA 890 | 56.8 gr. | Erfoud | 2001 | Chondrite LL6 |
019 | NWA 891 | 70.8 gr. | Erfoud | 2001 | Chondrite H4 |
020 | NWA 892 | 54.6 gr. | Erfoud | 2001 | Chondrite H5 |
021 | NWA 893 | 50.8 gr. | Erfoud | 2001 | Chondrite L6 |
022 | NWA 894 | 45.8 gr. | Erfoud | 2001 | Chondrite L6 |
023 | NWA 895 | 54 gr. | Erfoud | 2001 | Chondrite H5 |
024 | NWA 896 | 39.7 gr. | Erfoud | 2001 | Chondrite L6 |
025 | NWA 897 | 176 gr. | Erfoud | 2001 | Chondrite L6 |
026 | NWA 898 | 95.8 gr. | Erfoud | 2001 | Chondrite L6 |
027 | NWA 899 | 74.6 gr. | Erfoud | 2001 | Chondrite LL6 |
028 | NWA 900 | 616 gr. | Erfoud | 2001 | Chondrite L3/6 Brecciated |
029 | NWA 901 | 278 gr. | Erfoud | 2001 | Chondrite H5 |
030 | NWA 902 | 158 gr. | Erfoud | 2001 | Chondrite H4 |
031 | NWA 903 | 500 gr. | Erfoud | 2001 | Chondrite H3 |
032 | NWA 975 | 1100 gr. | Erfoud | 2001 | Chondrite L4 |
033 | NWA 976 | 170 gr. | Erfoud | 2001 | Chondrite L5 |
034 | NWA 977 | 600 gr. | Erfoud | 2001 | Chondrite L5 |
035 | NWA 1051 | 88 gr. | Erfoud | 2001 | Chondrite L5 |
036 | NWA 1052 | 22 gr. | Erfoud | 2001 | Achondrite Acapulcoite |
037 | NWA 1053 | 108 gr. | Erfoud | 2001 | Chondrite L6 |
038 | NWA 1054 | 86 gr. | Erfoud | 2001 | Achondrite Acapulcoite |
039 | NWA 1055 | 132 gr. | Erfoud | 2001 | Chondrite L4 |
040 | NWA 1056 | 188 gr. | Erfoud | 2001 | Chondrite H5 |
041 | NWA 1057 | 124 gr. | Erfoud | 2001 | Chondrite H4 |
042 | NWA 1058 | 180 gr. | Erfoud | 2001 | Primitive Achondrite Like Winonaite |
043 | NWA 1059 | 110 gr. | Erfoud | 2001 | Chondrite L5 |
044 | NWA 1060 | 112 gr. | Erfoud | 2001 | Chondrite LL5 |
045 | NWA 1061 | 112 gr. | Erfoud | 2001 | Chondrite L6 |
046 | NWA 1062 | 112 gr. | Erfoud | 2001 | Chondrite H4 |
047 | NWA 1063 | 78 gr. | Erfoud | 2001 | Chondrite H4 |
048 | NWA 1064 | 84 gr. | Erfoud | 2001 | Chondrite H5 |
049 | NWA 1065 | 56 gr. | Erfoud | 2001 | Chondrite LL5 |
050 | NWA 1066 | 132 gr. | Erfoud | 2001 | Chondrite H5 |
051 | NWA 1067 | 118 gr. | Erfoud | 2001 | Enstatite Chondrite E6 |
052 | NWA 1185 | 105 gr. | Erfoud | 2001 | Chondrite H5 |
053 | NWA 1186 | 196 gr. | Erfoud | 2001 | Chondrite H5/6 |
054 | NWA 1187 | 190 gr. | Erfoud | 2001 | Chondrite H4/5 |
055 | NWA 1188 | 82.6 gr. | Erfoud | 2001 | Chondrite H4/5 |
056 | NWA 1189 | 114 gr. | Erfoud | 2001 | Chondrite L3.8/L6 Brecciated |
057 | NWA 1190 | 22.9 gr. | Erfoud | 2001 | Carbonaceous Chondrite CR2 |
058 | NWA 1243 | 35.9 gr. | Erfoud | 2002 | Chondrite L5 |
059 | NWA 1244 | 25.6 gr. | Erfoud | 2002 | Chondrite L3.8/L6 Brecciated |
060 | NWA 1245 | 40.4 gr. | Erfoud | 2002 | L3.8/L6 Brecciated |
061 | NWA 1246 | 44.3 gr. | Erfoud | 2002 | L3.8/L6 Brecciated |
062 | NWA 1247 | 27.6 gr. | Erfoud | 2002 | Chondrite L3.8 |
063 | NWA 1248 | 102 gr. | Erfoud | 2002 | Chondrite L3.8/L6 Brecciated |
064 | NWA 1249 | 64.8 gr. | Erfoud | 2002 | L3.8/L6 Brecciated |
065 | NWA 1250 | 522 gr. | Erfoud | 2002 | Chondrite L5 Veined |
066 | NWA 1251 | 122 gr. | Erfoud | 2002 | Chondrite H5/6 |
067 | NWA 1252 | 92 gr. | Erfoud | 2002 | Chondrite H5/6 |
068 | NWA 1253 | 50 gr. | Erfoud | 2002 | Chondrite H4/5 |
069 | NWA 1255 | 794 gr. | Erfoud | 2002 | Chondrite L6 |
070 | NWA 1256 | 42 gr. | Erfoud | 2002 | Achondrite Ureilite Breccia Unquilibrated |
071 | NWA 1257 | 172 gr. | Erfoud | 2002 | Chondrite H4/5 |
072 | NWA 1258 | 72 gr. | Erfoud | 2002 | Chondrite L5/6 |
073 | NWA 1259 | 120 gr. | Erfoud | 2002 | Chondrite L3.8/L6 Brecciated |
074 | NWA 1260 | 2518 gr. | Erfoud | 2002 | Chondrite L3.8/L6 Brecciated |
075 | NWA 1261 | 118 gr. | Erfoud | 2002 | Chondrite L5 |
076 | NWA 1262 | 180 gr. | Erfoud | 2002 | Chondrite L5 |
077 | NWA 1263 | 74.4 gr. | Erfoud | 2002 | Chondrite L4 |
078 | NWA 1264 | 80 gr. | Erfoud | 2002 | Chondrite L4/5 |
079 | NWA 1265 | 198 gr. | Erfoud | 2002 | Chondrite L6 |
080 | NWA 1266 | 95.2 gr. | Erfoud | 2002 | Chondrite L3/6 |
081 | NWA 1267 | 200 gr. | Erfoud | 2002 | Chondrite L5 |
082 | NWA 1268 | 236 gr. | Erfoud | 2002 | Chondrite L5 |
083 | NWA 1269 | 62.2 gr. | Erfoud | 2002 | Chondrite L5 |
084 | NWA 1270 | 204 gr. | Erfoud | 2002 | Chondrite L4/5 |
085 | NWA 1271 | 94.2 gr. | Erfoud | 2002 | Chondrite L6 |
086 | NWA 1272 | 93.6 gr. | Erfoud | 2002 | Chondrite L4/5 |
087 | NWA 1273 | 220.48 gr. | Erfoud | 2002 | Chondrite H5 |
088 | NWA 1274 | 138.4 gr. | Erfoud | 2002 | Chondrite H5 |
089 | NWA 1275 | 597.1 gr. | Erfoud | 2002 | Chondrite L6 |
090 | NWA 1276 | 266 gr. | Erfoud | 2002 | Chondrite L6 |
091 | NWA 1254 | 281 gr. | Erfoud | 2002 | Chondrite H5 |
092 | NWA 1554 | 178 gr. | Erfoud | 2002 | Chondrite L/H4 |
093 | NWA 1555 | 50 gr. | Erfoud | 2002 | Chondrite H5/6 |
094 | NWA 1556 | 374 gr. | Erfoud | 2002 | Chondrite L6 |
095 | NWA 1557 | 124 gr. | Erfoud | 2002 | Chondrite L/LL6 |
096 | NWA 1698 | 698 gr. | Erfoud | 2002 | Chondrite L5 |
097 | NWA 1699 | 350 gr. | Erfoud | 2002 | Chondrite L4/5 |
098 | NWA 1700 | 95 gr. | Erfoud | 2002 | Chondrite L5 |
099 | NWA 1701 | 225 gr. | Erfoud | 2002 | Chondrite LL5 Impact Melt Breccia |
100 | NWA 1702 | 220 gr. | Erfoud | 2002 | Chondrite H6 |
101 | NWA 1703 | 264 gr. | Erfoud | 2002 | Chondrite L5 |
102 | NWA 1704 | 166 gr. | Erfoud | 2002 | Chondrite H5 |
103 | NWA 1705 | 110 gr. | Erfoud | 2002 | Chondrite L5 |
104 | NWA 1706 | 148 gr. | Erfoud | 2002 | Chondrite L6 |
105 | NWA 1707 | 522 gr. | Erfoud | 2002 | Chondrite L4 |
106 | NWA 1708 | 11.1 gr. | Erfoud | 2002 | Chondrite L5 |
107 | NWA 1709 | 9.5 gr. | Erfoud | 2002 | Chondrite H3.?? |
108 | NWA 1710 | 5.6 gr. | Erfoud | 2002 | Chondrite LL4 |
109 | NWA 1807 | 274 gr. | Erfoud | 2002 | Carbonaceous Chondrite CV3 |
110 | NWA 1808 | 684 gr. | Erfoud | 2002 | Chondrite H5 Impact Melt Breccia |
111 | NWA 1809 | 214 gr. | Erfoud | 2002 | Chondrite LL6 |
112 | NWA 2045 | 19 gr. | Erfoud | 2003 | Chondrite LL3 |
113 | NWA 2176 | 1200 gr. | Erfoud | 2003 | Chondrite LL |
114 | NWA 2177 | 74.8 gr. | Erfoud | 2003 | Achondrite Eucrite |
115 | NWA 2179 | 367.2 gr. | Erfoud | 2003 | Chondrite H3 |
116 | NWA 2180 | 369.3 gr. | Erfoud | 2003 | Carbonaceous Chondrite CV3 |
117 | NWA 2350 | 141.5 gr. | Erfoud | 2003 | Chondrite H4 |
118 | NWA 2513 | 17.78 gr. | Erfoud | 2003 | Chondrite LL5 |
119 | NWA 2514 | 6.58 gr. | Erfoud | 2003 | Chondrite H4 |
120 | NWA 2804 | 192.3 gr. | Erfoud | 2005 | In analysis |
121 | NWA 2805 | 224.4 gr. | Erfoud | 2005 | In analysis |
122 | NWA 2806 | 148.4 gr. | Erfoud | 2005 | Chondrite H Melt |
123 | NWA 3211 | 89.2 gr. | Erfoud | 2005 | Achondrite Eucrite |
124 | NWA 3212 | 176.6 gr. | Erfoud | 2005 | Achondrite Eucrite |
125 | NWA 3213 | 147 gr. | Erfoud | 2005 | Mesosiderite |
126 | NWA 3214 | 435.2 gr. | Erfoud | 2005 | Carbonaceous Chondrite CV3 |
127 | NWA 3215 | 96.5 gr. | Erfoud | 2005 | In analysis – probably pseudometeorite |
128 | NWA 4221 | 1300 gr. | Erfoud | 2006 | In analysis |
129 | NWA 4222 | 16.55 gr. | Erfoud | 2006 | In analysis – Martian |
130 | NWA 4280 | 365.1 gr. | Erfoud | 2006 | In analysis |
131 | NWA 4281 | 40.95 gr. | Erfoud | 2006 | In analysis |
132 | NWA 4415 | 10 gr. | Erfoud | 2006 | In analysis – Probably Enstatite |
133 | NWA 4416 | 259.1 gr. | Erfoud | 2006 | In analysis – Probably Enstatite |
134 | NWA 4417 | 90.1 gr. | Erfoud | 2006 | In analysis – Probably H7 |
135 | NWA 4418 | 103.75 gr. | Erfoud | 2006 | In analysis – Probably Mesosiderite |
136 | NWA 4419 | 103.15 gr. | Erfoud | 2006 | In analysis – Probably R Chondrite |
137 | NWA 4428 | 301.4 gr. | Erfoud | 2006 | In analysis |
138 | NWA 4537 | 103 gr. | Erfoud | 2006 | In analysis – probable Aubrite |
· Found 2001
· Ordinary chondrite H3
Several stones were bought at Erfoud market by an anonymous buyer. Classification and mineralogy (G.Pratesi, V.Moggi-Cecchi, A. Salvadori, MSP: petrography and EMPA; G. Sighinolfi and S. Lugli, UMo: EMPA): the meteorite consists of chondrules 300-600 µm in size, of different types (PO, POP, BO, RP) and their fragments embedded in a fine-grained matrix; olivine is Fa1.62-35.17, with an average of Fa14.85; olivine compositions vary continuously between these two values. The mean value and the amount of Fe,Ni alloy suggest a classification as H chondrite. Low-Ca pyroxenes range from Fs4.26En92.95Wo1.34 to Fs17.36En82.16Wo0.48. A diopsidic pyroxene (SiO2 50.57, Al2O3 10.49, MgO 9.99, CaO 7.98 wt. %; SiO2 49.80, Al2O3 1.79, MgO 20.48, CaO 1.25 wt. %) has been found, too. Minor phases are kamacite, taenite and troilite; some olivine grains in BO and PO chondrules are markedly zoned and contain a glassy mesostasis. Compositional data on olivine point to a petrological subtype <3.5. Weathering grade is W3; shock stage is S1. Specimens: one thin section and 28.9 g, MSP; main mass (500 g) with anonymous buyer.
NWA 1052
· Morocco
· Found 2001
· Acapulcoite
A stone of 22 g was bought in Erfoud (Morocco) by Matteo Chinellato. Classification and mineralogy (G.Pratesi, V.Moggi-Cecchi, L. Mancini, MSP: petrography and EMPA; G. Sighinolfi and S. Lugli, UMo: EMPA): either thin section and type specimen sample look to be composed by a fine grained aggregate. In thin section it displays an granular texture with grains mainly represented by olivine, pyroxene, Fe,Ni alloy and troilite and ranging from 200 to 700 µm in dimensions. Olivine is homogeneous and has a typical forsteritic composition, (Fa = 5.95 mol %); orthopyroxene is bronzitic (Fs = 7.60, Wo = 1.44 mol %). High Ca-pyroxene (Fs = 3.63, En = 51.11, Wo = 45.26, Al-px = 1.44 mol %) and plagioclase (An = 13.73, Ab = 79.90, Or = 6.37 mol %) are also common. Apart from silicates, major phases are metal and troilite. Accessory phases include Na- and Ca-Merrillite and magnesiochromite (Cr/(Cr+Al) = 0.91; Fe:Mn:Mg ratios = 0.58:0.09:0.33). Nichelphosphide grains with an anomalous composition, pointing to a (Ni,Fe)4P formula have been found, too. This meteorite shows a recrystallization texture with abundant 120° triple junctions and many interstices filled with metal. Based on texture (fine coarsed), mineralogy and chemistry (Cr content of diopside varying from 1.18 to 1.43 wt. %) the meteorite is classified as an acapulcoite. Terrestrial weathering grade is rather low (W1); optical features (sharp extinction of olivine) indicate that the sample is very weakly or not shocked (S1). Specimens: main mass with buyer (Matteo Chinellato); type specimen (4.7 g) and thin section, MSP.
NWA 1054
· Morocco
· Found 2001
· Acapulcoite
A stone of 86 g was bought in Erfoud (Morocco) by an anonymous dealer. Classification and mineralogy (G.Pratesi, V.Moggi-Cecchi, L. Mancini, MSP: petrography and EMPA; G. Sighinolfi and S. Lugli, UMo: EMPA): either thin section and type specimen sample look to be composed by a fine grained aggregate. In thin section it displays an granular texture with grains mainly represented by olivine, pyroxene, Fe,Ni alloy and troilite and ranging from 200 to 700 µm in dimensions. Olivine is homogeneous and has a typical forsteritic composition, (Fa = 6.37 mol %); orthopyroxene is bronzitic (Fs = 7.77, Wo = 1.32 mol %). High Ca-pyroxene (Fs = 3.33, En = 51.23, Wo = 45.44, Al-Px = 1.50 mol %) and plagioclase (An = 14.27, Ab = 79.47, Or = 6.25 mol %) are also common. Apart from silicates, major phases are metal and troilite. Accessory phases include Na-Merrillite and magnesiochromite (Cr/(Cr+Al) = 0.96; Fe:Mn:Mg ratios = 0.60:0.12:0.28). Nichelphosphide grains with an anomalous composition, pointing to a (Ni,Fe)4P formula have been found, too. This meteorite shows a recrystallization texture with abundant 120° triple junctions and many interstices filled with metal. Based on texture (fine coarsed), mineralogy and chemistry (Cr content of diopside varying from 1.17 to 1.35 wt. %) the meteorite is classified as an acapulcoite. Terrestrial weathering grade is rather low (W1); optical features (sharp extinction of olivine) indicate that the sample is very weakly or not shocked (S1). Specimens: main mass with buyer; type specimen (17.9 g) and thin section, MSP.
NWA 1807
· Morocco
· Found 2002
· Carbonaceous chondrite (CV3)
A stone of 274 g was bought in Erfoud (Morocco) by Mr. Matteo Chinellato. The main mass, weighing 54.5 g, has no crust. Classification and mineralogy (G.Pratesi, V.Moggi Cecchi, MSP): a cut surface on the type specimen displays rather large chondrules and some small white spots. In thin section many chondrules of various kinds (POP, PO, BO, RP) accounting for ~50% vol. and ranging from 500 to 1200 µm are visible, set in a fine intergrowth of microporphyric orthopyroxenes. Olivine composition ranges from Fa0.83 to Fa5.03 mol. % in the chondrules and reaches Fa49.72 out of them. Orthopyroxene is enstatitic (En98.14, Wo1.06). An augitic pyroxene is also present (Fs15.54-28.61, En25.12-36.97, Wo46.12-47.49). Chondrules glass is anorthitic (An84.67, Ab15.3 mol. %). Fe,Ni alloy and troilite are rather uncommon (less than 5% vol.). Rare apatite grains and CAIs are present. Oxygen isotope measurements (I.Franchi, R.Greenwood, Open University) d17O = -1.643‰ d18O = 2.524‰; D17O = -2.955‰ plot on the end of the CV range. Based on texture, mineralogy, chemistry and OI data, the meteorite is classified as a CM2 carbonaceous chondrite. Terrestrial weathering grade is rather low (W1); optical features indicate a low shock stage (S1). Specimens: main mass with buyer; type specimen (20.5 g) and thin section, MSP.
NWA 1808
· Morocco
· Found 2002
· H5, impact melt breccia
A dark brown stone of 684 g was bought in Erfoud (Morocco) by an anonymous buyer. Classification and mineralogy (G.Pratesi, V.Moggi Cecchi, MSP): the main mass has no crust and a large metal vein on its surface. A cut surface on the type specimen displays areas with a marked difference in the amount of metal and seems to be composed by two different portions: a fine grained one and a coarse grained one. In thin section the fine grained part shows a re-crystallization texture with few grains of residual metal and olivine in a matrix of feldspatic glass (An = 17.62, Ab = 77.49, Or = 4.88 mol. %) containing very fine grained olivine and pyroxenes crystals; metal pools and droplets shows fringes substituting the outstanding glass. The coarse grained portion presents a typical chondritic texture: major phases are olivine and low-Ca pyroxene (Fa = 18,96 mol. %; Fs = 16,31, En = 82,03, Wo = 1.67 mol %), metal and troilite. Based on texture, mineralogy and chemistry of the coarse grained portion, the meteorite is classified as an H chondrite impact melt breccia. Terrestrial weathering grade is absent (W0); optical features (undulatory extinction of olivine) indicate that the sample is rather distinctly shocked (S3). Specimens: main mass with buyer; type specimen (20.1 g) and thin section, MSP.
NWA 2045
· Found 2003
· Ordinary chondrite LL3
One stone weighing 19 g was bought at Erfoud market by an anonymous buyer. Mineralogy and classification (G.Pratesi, V.Moggi Cecchi, MSP)): the meteorite consists of chondrules 500-700 µm in size, of different types (PO, POP, BO, RP) and their fragments embedded in a fine-grained matrix; olivine is Fa29.83-43.73, PMD 22%, the average is Fa35.64; mean low-Ca pyroxene is Fs24.87En73.57Wo1.57; minor phases are pigeonite, (Fs9.40En45.72Wo44.88), augite, kamacite, taenite and troilite; POP and PO chondrules are moderately zoned and contain a glassy mesostasis. Compositional data on olivine point to a petrological subtype 3.8/3.9. Weathering grade is W3; shock stage is S2. Specimens: one thin section and 3.7 g, MSP; main mass with anonymous buyer.
NWA 2179
· Found 2003
· Ordinary chondrite H3
Several stones weighing in total 367.2 g was bought at Erfoud market by an anonymous buyer. Mineralogy and classification (G.Pratesi, V.Moggi Cecchi, MSP)): the meteorite consists of chondrules 500-700 µm in size, of different types (PO, POP, BO, RP) and their fragments embedded in a fine-grained matrix; olivine is Fa0.81-18.38, with an average of Fa6.68; two clusters of analyses, with mean values at Fa1.53 and Fa12.02, respectively, can be delineated for chondrule olivines, pointing to a classification as H chondrite. Low-Ca pyroxenes range from Fs6.13En93.07Wo0.80 to Fs21.01En78.17Wo0.83, in good agreement with olivine data; minor phases are pigeonite, kamacite, taenite and troilite; some olivine grains in BO and PO chondrules are markedly zoned and contain a glassy mesostasis. Compositional data on olivine point to a petrological subtype <3.5. Weathering grade is W2; shock stage is S1. Specimens: one thin section and 29.4 g, MSP; main mass (88.8 g) with anonymous buyer.
NWA 2180
· Morocco
· Found 2002
· Carbonaceous chondrite
A number of stones, totally weighing 369.3 g was bought in Erfoud (Morocco) by an anonymous buyer. The main mass is weighing 51.4 g. Classification and mineralogy (G.Pratesi, V.Moggi Cecchi, MSP): a cut surface on the type specimen displays rather large chondrules and some small white spots. In thin section several chondrules of various kinds (POP, PO, BO, RP) accounting for ~50% vol. and ranging from 500 to 600 µm are visible, set in a fine intergrowth of microcrysts of phyllosilicates. Two clusters of olivine composition ranging from Fa0.18 to Fa9.93 mol. % and from Fa31.32 to Fa44.49 mol. % in the chondrules. A mean value of . Orthopyroxene is enstatitic (En98.10, Wo1.09). A pigeonitic pyroxene with variable composition is also present (Fs0.95-0.45, En59.42-93.22, Wo39.63-6.33). Chondrules glass is anorthitic (An90.33, Ab9.67 mol. %). Fe,Ni alloy and troilite are rather uncommon (less than 5% vol.). Rare apatite grains and CAIs are present. Oxygen isotope measurements (I.Franchi, R.Greenwood, Open University) O16/O18 = …. Based on texture, mineralogy, chemistry and OI data, the meteorite is classified as a …. carbonaceous chondrite. Terrestrial weathering grade is rather low (W1); optical features indicate a low shock stage (S1). Specimens: main mass with buyer; type specimen (20.5 g) and thin section, MSP.