Mineralogy

A study of the chemistry, structure, and physical properties of minerals.

Displaying 1201 - 1300 of 2805
Cat. # Name Description
1201 1990.53.0167 Topaz Crystals.
1202 1995.36.0056 Priceite Compact mass. Color: WH
1203 00.2.9.70.0008 Staurolite Twinned crystals. Color: BR
1204 1970.47.1.0143 Calcite None
1205 00.2.3.656.0002 Pyrite Parts of cubic crystals, brassy.
1206 1987.3.0108 Garnet group None
1207 00.2.10.151.0002 Calcite Satin spar.
1208 1990.53.0266 Actinolite (Amphibole group) Variety known as "mountain leather" coverd with small calcite crystals. Color: WH
1209 00.2.3.667.0002 Vermiculite None
1210 1990.53.0322 Quartz, geode None
1211 00.2.4.25.0010 Sphalerite Crystals to 1/8" - 1/4" on chert matrix.
1212 2006.15.0097 Turquoise Mini in size sky blue fragments inside green host rock, dull luster, 5-6 on hardness scale, hydrated copper aluminum Color: Blue
1213 00.2.5.100.0002 Quartz Crystal.
1214 00.2.6.210.0014 Malachite Silicate & oxide of copper.
1215 1970.47.4.0051 Calcite Catalog says "Unidentified specimen".
1216 1978.34.4.0001 Chrysocolla Massive. Color: AQ
1217 1990.53.0089 Malachite Mass of acicular. Color: GR
1218 1995.1.0006 Quartz Both chalcedony & agate (banded) varieties of quartz with small vug of crystals (rusty). Color: TN,WH,OR Quartz image
1219 00.2.9.65.0005 Hornblende Massive. Color: BK
1220 00.2.4.40.0009 Carnallite One tube, undetermined #.
1221 00.2.5.138.0001 Mesolite None
1222 11.11.0025 Molybdenite Foliated mass.
1223 00.2.23.710.0024 Aragonite Twinned crystals.
1224 1990.53.0201 Quartz None
1225 2006.15.0014 Malachite Medium in size malachite specimen, 2 polished faces, stone with bands of emerald and light mint green with bands of translucent chalcedony within, dull to silky luster, 3.5-4 on hardness scale. Secondary copper mineral Color: Green
1226 00.2.9.80.0003 Zircon None
1227 00.2.6.198.0009 Gypsum Ver. selenite; 2 crystals.
1228 1970.47.1.0220 Galena None
1229 00.2.3.661.0001 Chalcopyrite Massive, brass colored on dark matrix (epidote?).
1230 1990.53.0013 Azurite Crystals; Dark blue, shiny crystals to 1/4" covering spcimen some malachite present
1231 1990.53.0014 Apophyllite On prehorite. Color: WH Apophyllite image
1232 00.2.10.177.0003 Calcite Cleavages.
1233 1990.53.0309 Calcite Geode.
1234 00.2.3.673.0003 Kyanite Crystal blades in quartz. Color: BL,TN
1235 1990.53.0360 Quartz None
1236 00.2.9.53.0007 Hematite Color: RD
1237 00.2.4.30.0007 Pyrite None
1238 2006.15.0131 Calcite Small in size specimen of limestone with calcite 9dog-tooth spar) inside (calcite "geode") with traces of pyrite (bronze) on crystals, dull to vitreous luster, 3 on hardness scale, various colors, calcium carbonate Color: Colorless
1239 00.2.5.105.0001 Quartz Smoky quartz crystals.
1240 1986.16.54.0015 Tourmaline group None
1241 1990.53.0123 Aragonite Aragonite crystal cluster coated w/ calcite, reddish brown, largest xtal 1 1/4" across
1242 00.2.4.15.0004 Galena None
1243 1995.36.0027 Gypsum Var. selenite, with curved crystals. Color: WH Gypsum image
1244 00.2.9.68.0006 Feldspar Feldspar, albite.
1245 00.2.4.43.0005 Pyrite None
1246 00.2.6.195.0002 Apatite group None
1247 00.2.3.645.0004 Galena Large chunk showing many shiny cleavage faces. Some chalcopyrite present. Color: GY
1248 1986.16.54.0029 Tourmaline group None
1249 00.2.10.145.0003 Calcite None
1250 1990.53.0235 Sulfur Small sparkly yellow crystals, both sides. Color: YL Sulfur image
1251 2006.15.0056 Quartz, rock crystal Small in size singular rock crystal, colorless, near perfect cleavage, vitreous luster, 7 on hardness scale Color: Colorless
1252 00.2.6.203.0009 Celestite Pale blue-gray crystalline chunk.
1253 1970.47.1.0382 Chalcopyrite Crystals, also dolomite & sphalerite crystals.
1254 1990.53.0046 Descloizite None
1255 00.2.13.500.0006 Pyrite Pyrite in black tourmaline.
1256 00.2.3.680.0005 Aragonite Acicular radiating groups, and stalactic forms. Color: WH
1257 1994.11.0005 Fluorite Vug lined with calcite then 1/8" fluorite cubes. Color: BR,GD
1258 00.2.9.56.0013 Pyrolusite None
1259 00.2.4.34.0011 Pyrite Ore samples with quartz & galena; possible rhodocrosite
1260 00.2.5.112.0002 Quartz, geode Fragment.
1261 00.3.3.691.0005 Quartz, geode None
1262 00.2.2.563.0004 Enargite Dark gray, massive.
1263 1990.53.0168 Turquoise Tumbled, polished turquoise and quartz.
1264 1995.36.0057 Augite (Pyroxene group) Indistinct crystals forming almost solid aggregate. Color: BK
1265 00.2.9.70.0009 Hemimorphite Botryoidal.
1266 1970.47.1.0145 Calcite None
1267 00.2.3.656.0005 Pyrite Three dark (tarnished?0 cubes 1 - 1/4" x 14" 2 - 1/8" x 1/8"
1268 1987.3.0110 Microcline (Feldspar group) Var. Amazonite.
1269 00.2.10.151.0003 Calcite None
1270 1990.53.0267 Limonite Limonite replacing pyrite in striated cubes.
1271 00.2.3.667.0004 Clinochlore Ripidolite, the iron rich variety of clinoclore. Color: GR
1272 1990.53.0323 Quartz, geode None
1273 00.2.4.26.0003 Sphalerite Massive; 1 miniature has weathered crystals with chalcopyrite crystals
1274 2006.15.0098 Galena Small rock, lead sulfide, heavy somewhat abbrassive texture, metallic or submetallic luster, 2.5-3 on hardness scale, steel gray or metallic powder blue color, greatest ore of lead Color: Gray
1275 00.2.5.100.0003 Quartz Crystal.
1276 00.2.6.212.0005 Barite Concretionary barite, silicon.Cluster of white nodules.
1277 1970.47.4.0056 Quartz None
1278 1990.53.0090 Grunerite Fibrous aggregate; silky. Color: GY
1279 00.2.4.10.0001 Copper None
1280 1995.1.0007 Quartz Quartz crystal lined vugs in chalcedony. Color: CL
1281 00.2.9.65.0006 Actinolite (Amphibole group) Massive variety known as nephrite. Color: GR
1282 00.2.4.40.0010 Fluorite Color: GR, BG Fluorite image
1283 00.2.5.138.0003 Quartz Var. plasm.
1284 11.11.0026 Stibnite Intergrown crystals to 1/4".
1285 1990.53.0202 Quartz Quartz zinc calcite.
1286 2006.15.0015 Malachite Small in size malachite specimen, bright mint and emerald green colour, bands of malachite atop one another, dull to silky luster, 3.5-4 on hardness scale Color: Green
1287 00.2.9.81.0001 Limonite Iridescent.
1288 00.2.6.198.0011 Gypsum Gypsum crystal in clay.
1289 1970.47.1.0221 Galena None
1290 00.2.3.661.0002 Chalcopyrite Small brassy crystals on matrix; small amount of malachite?
1291 1970.47.1.0222 Galena None
1292 00.2.3.661.0003 Chalcopyrite None
1293 1990.53.0015 Microcline (Feldspar group) None
1294 00.2.10.177.0005 Calcite Limestone bearing calcite crystals.
1295 00.2.3.673.0004 Scapolite (Wernerite) Wernerite was the most common alternate name for the scapolite series, but now it has mostly disappeared from use. A few other names such as mizzonite and dipyre as well as marialite and meionite have been used as names for the entire scapolite series. Now scapolite is a name recognized by most every mineralogist and rock hound the world over.
1296 1990.53.0362 Dolomite White dolomite crystals covering specimen.
1297 00.2.9.53.0009 Hematite None
1298 00.2.4.30.0008 Pyrite Cubic crystals to 3/8" scattered among quartz crystals; tiny crystls with calcite on matrix
1299 2006.15.0132 Calcite Small in size cluster of calcite (dog-tooth spar variety) in host rock, with traces of iron ore (dark gray color), dull to vitreous luster, 3 on hardness scale, calcium carbonate Color: Colorless
1300 00.2.5.105.0002 Quartz Dull quartz crystals.
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