Mineralogy

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

Displaying 201 - 300 of 2805
Cat. # Name Description
201 1970.47.1.0390 Pyrite None
202 00.2.3.655.0003 Marcasite Marcasite--radiating structures.
203 00.2.6.196.0002 Barite Massive, white.
204 00.2.9.56.0003 Cassiterite Small nuggets (all but 1 larger in glass vial). Color: BR
205 00.2.6.240.0006 Azurite Crystals.
206 00.2.3.678.0003 Calcite Calcite rhomb spar exhibiting refraction; var. Iceland spar
207 1990.53.0369 Calcite None
208 00.2.4.32.0008 Pyrite A few crystals embedded in quartz.
209 2006.15.0038 Quartz, amethyst Medium in size amethyst specimen, uneven ridges, area that may crack near number, murky violet colour with visible bands of quartz throughout specimen, vitreous luster, 7 on hardness scale; silicon dioxide Color: Violet
210 00.2.9.69.0010 Feldspar Labradorite feldspar.
211 1987.3.0032 Quartz None
212 1990.53.0125 Cuprite Var. chalcatrichite, acicular (in perky box). Color: RD
213 00.2.9.90.0008 Barite Not really barite specimens. 2 + 1.
214 00.2.4.20.0003 Hematite Massive, specular. Color: GY
215 1973.80.3.0016 Sulfur Massive; Crystals on matrix.
216 1995.36.0035 Heulandite Group of crystals on basalt. Zeolite group. Color: WH,CL
217 00.2.4.8.0016 Azurite None
218 00.2.23.710.0007 Quartz Botryoidal. Inside of geode.
219 00.2.5.113.0013 Quartz Quartz-wood agate.
220 00.2.10.159.0002 Calcite Crystals on carboniferous limestone.
221 1990.53.0069 Goethite Shiny, column. Color: BKBR
222 1990.53.0237 Sphalerite None
223 00.2.6.204.0007 Smithsonite None
224 1970.47.1.0009 Malachite None
225 00.2.4.24.0005 Galena Group of cubic crystals coated with drusy pyrites. Color: GY
226 00.2.3.660.0003 Corundum Massive with magnetite known as emery. Color: BK
227 00.2.15.331.0003 Scheelite Pale gray, massive.
228 00.2.9.64.0006 Augite (Pyroxene group) Pyroxene-augite. Volcanic.
229 00.2.9.51.0001 Hematite Massive red with black botryoidal coating. Color: RD-BK
230 00.2.3.693.0003 Quartz Drusy quartz slightly amethystone.
231 00.2.4.4.0011 Silver 80%.
232 00.2.5.101.0002 Halite Massive; (Book - Quartz crystals, 1 specimen).
233 2006.15.0088 Quartz Quartz-Agate Medium in size fire agate specimen, banded and core of agate is visible, red, brown, orange, and semi-translucent coloring, dull to vitreous luster, 7 on hardness scale Color: Red, Brown
234 00.2.9.75.0010 Dolomite None
235 1990.53.0172 Tourmaline group None
236 1970.47.1.0258 Gypsum Var. selenite, clear cleavage fragments.
237 11.11.0009 Calcite Geode, with large yellow crystals; 2 halfs
238 1986.16.54.0010 Tourmaline group None
239 2006.15.0010 Barite A cabinet sized specimen with a waxy luster and well developed white and brown crystals. The underside of the main face is more rough and rust colored. Color: CR BR
240 00.2.3.644.0004 Quartz Quartz, pyrite, galenite?
241 00.2.5.203.0004 Aragonite None
242 00.2.11.264.0001 Hematite Crystals, 1/2" - 1/4", on matrix (after magnetite). Color: BK
243 1990.53.0108 Celestite White, bladed crystals, intertwined. Calcite crystals to 3/8".
244 1990.53.0271 Rhodochrosite Pale pink rhodochrosite crystals on quartz crystal matrix
245 00.2.6.229.0007 Gypsum Pink, massive granular.
246 1970.47.1.0206 Galena None
247 00.2.4.29.0012 Pyrrhotite Massive, black.
248 00.2.9.67.0013 Muscovite Crystal. Color: CL
249 00.2.4.12.0008 Graphite None
250 1995.36.0004 Calcite Modified scalenohedron. Center zone is clear gold, outer zone opaque and paler gold; crystals on & cementing limestone fragments with small sphalerite crystals. Color: GD
251 00.2.4.42.0008 Pyrite Granular mixture of pyrite & galena with small vug showing small crystals of both
252 00.2.15.696.0020 Sphalerite Massive sphalerite cementing pieces of matrix. Color: BR
253 00.2.5.105.0011 Quartz Smoky quartz.
254 00.2.10.150.0002 Calcite Styolitic.
255 2006.15.0122 Quartz var. Geode Medium in size quartz geode rough, unopened rock, possibly agate, presumably with quartz crystals inside, dull luster, 7 on hardness scale, crystals unknown colors Color: Brown
256 1990.53.0029 Calcite, butterfly None
257 1990.53.0205 Pyrite Nice group of crystals to 1/2"; striated, pyritohedral.
258 00.2.6.199.0008 Gypsum Var. selenite, clear flat cleavage pieces.
259 1970.47.1.0391 Pyrite LS.
260 00.2.3.655.0005 Realgar Almost totally changed to orpiment -As2S2. Color: OR
261 00.2.6.196.0003 Barite White, lamellar.
262 00.2.9.56.0004 Cassiterite Ore
263 00.2.7.395.0001 Malachite Malachite crystals and other copper ores.
264 00.2.3.678.0005 Calcite Secondary crystals.
265 1990.53.0370 Manganite Vug of crystals in slag. Color: BK
266 00.2.4.32.0009 Quartz Quartz crystals on pyritiferous rock.
267 2006.15.0039 Quartz, amethyst Small in size amethyst crystal, deep violet colour, vitreous luster, 7 on hardness scale; silicon dioxide Color: Violet
268 00.2.9.69.0011 Feldspar Color: PK
269 1987.3.0034 Fluorite Mayflower; may be fluorescent.
270 1990.53.0126 Calcite Eight specimens, a. - h.
271 00.2.9.91.0007 Nickeline Massive. Color: PK
272 00.2.4.20.0005 Quartz Quartz, chalcopyrite, barite (?), tarnished galenite.
273 1974.25.0002 Halite Rock salt in vial; numerous pieces. Deaccession candidate "Used to melt salt on sidewalks". Unknown quantity in bottle.
274 1995.36.0036 Talc Scam of translucent talc. Color: GR-WH
275 00.2.23.710.0017 Quartz Iron, stained quartz crystals.
276 00.2.5.115.0002 Quartz Quartz-chalcedony.
277 00.2.10.159.0004 Calcite Drusy iridescent calcite crystals on black limestone.
278 1990.53.0070 Clinochlore Garnet crystal pseudomorph. Color: GR
279 1990.53.0238 Stibnite Interlocking dark silver crystals.
280 00.2.6.204.0008 Strontianite None Strontianite image
281 1970.47.1.0010 Malachite None
282 00.2.3.660.0004 Kyanite Crystal aggregate. Color: BL
283 00.2.15.331.0007 Wulfenite Small, golden cubes in vugs.
284 00.2.9.64.0008 Forsterite Olivine.
285 00.2.9.51.0002 Hematite With copper.
286 1970.74.0316M Pyrophyllite Radiating crystal aggregate. Color: WH Pyrophyllite image
287 00.2.5.101.0004 Quartz Plumbiferous and pyritiferous.
288 1967.004 Olivine None
289 2006.15.0089 Quartz Quartz-Agate Small in size specimen of fire agate, rough pebble texture, red, orange, semi-translucent yellow coloration, dull to vitreous luster, 7 on hardness scale Color: Red, Orange
290 1970.0075 Quartz, geode Quartz geode. Large fragment. Thin shell; inside surface covered with crystals.
291 2006.15.0090 Quartz Quartz-Agate Medium in size agate formation known as "thunderball eggs" one polished face (half), bands of white chalcedony across rock and outlining edges, star shaped, middle filled with yellowish and blueish water looking substance encased in host rock, dull to vitreous luster, 7 on hardness scale; silicon dioxide Color: Brown, Blue
292 00.2.9.75.0011 Celestite Pale blue-gray crystal section.
293 1990.53.0173 Tourmaline group None
294 1970.47.1.0261 Talc Color: PK
295 11.11.0010 Fluorite Purple fluorite crystals with some cream colored calcite crystals.
296 1986.16.54.0011 Tourmaline group None
297 00.2.3.645.0001 Galena Group of cubic crystals, largest 1" x 1" Color: GY
298 00.2.5.97.0002 Quartz One large and one small.
299 00.2.11.264.0003 Carnotite Yellow coating.
300 1990.53.0109 Celestite White, bladed crystals, intertwined.
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