University of Northern Iowa

Mineralogy

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

Displaying 1 - 100 of 2805
Cat. # Name Description
1 1990.53.0062 Barite Golden crystals to 1/2" on matrix (nice!). Color: GD Barite image
2 00.2.6.236.0003 Corundum var. Ruby Rounded, to 1/4". Color: RD
3 1995.36.0046 Staurolite Stubby crystals in schist. Color: BK
4 00.2.15.327.0003 Calcite [Cephenomenal boulderet.(original catalog description)] Calcite crystals with vitreous encrustation on dark massive limestone/dolomite. Color: ML
5 1970.47.1.0347 Malachite None
6 1990.53.0176 Wulfenite Large, single, orange crystal.
7 00.2.9.56.0004 Cassiterite Ore
8 00.2.4.28.0007 Sphalerite Massive, some cleavage faces; miniature has rough, dull crystals
9 1990.53.0310 Quartz, geode None
10 00.2.5.105.0009 Quartz, smoky Smoky quartz.
11 2006.15.0085 Quartz Quartz-Agate Medium in size agate specimen, fortification agate, small close knit bands, almost looks like plant matter, red, orange, yellow, green and black, small crystals forming inside some bands, one polished face, dull to vitreous luster, 7 on hardness scale Color: Multiple
12 00.2.9.94.0004 Quartz Dysanialite quartz. Color: BK
13 00.2.3.675.0008 Staurolite None
14 00.2.3.642.0002 Copper None
15 1987.3.87.0005 Calcite Vein in gray limestone. Catalog says that 48 out of 54 specimens were deaccessioned in 6/93.
16 00.2.6.201.0010 Dolomite None
17 1990.53.0278 Natrolite None
18 00.2.9.69.0011 Feldspar Color: PK
19 00.2.4.41.0003 Cuprite Massive with malachite veins; earthy. Color: BR
20 00.2.10.189.0004 Calcite Crystals.
21 00.2.6.196.0001 Barite One specimen - tan calcite crystals.
22 1970.47.1.0086 Gypsum Clear crystal.
23 00.2.4.17.0009 Galena Three specimens. a. Single crystal. b. Weathered group. c. Massive. Color: GY
24 00.2.3.664.0003 Turquoise Massive; pale blue.
25 1990.53.0099 Descloizite Brown crystal cluster coated with white smithsonite.
26 00.2.8.492.0001 Calcite Dogtooth spar.
27 1970.47.1.0439 Galena Color: GY
28 00.2.15.331.0012 Aragonite 277 Aragonite CaCO3, Cianciana, Sicily, Foote, Philad'a. Label says dana 814 Scheelite, Tetragonal, Ca WO4, Zinnwald, bohemia. Card says Dana 814, Ward, Tetragonal, scheelite, Ca WO$, Zumwald, Bohemia see 331-13.
29 1986.16.54.0006 Tourmaline group None
30 1990.53.0209 Quartz Sawn block 1 1/4" x 1" x 3/4". Color: GR
31 00.2.9.64.0008 Forsterite Olivine.
32 00.2.4.31.0004 Pyrite Granular aggregate.
33 1990.53.0345 Autunite Yellow green crystals.
34 00.2.10.146.0010 Calcite Crystals.
35 00.2.5.112.0014 Quartz Acicular secondary quartz crystals with pyrite crystals.
36 2006.15.0118 Quartz var. Geode Medium in size (whole geode) sections with quartz crystals inside (A & B) gray crystals, "Coconut Geode" both halves have a polished face or edges, vitreous luster, 7 on hardness scale, Color: Gray
37 11.11.0017 Calcite Pineapple calcite.
38 00.2.3.691.0003 Quartz, geode Papillated surface.
39 00.2.3.652.0001 Sphalerite None
40 1990.53.0021 Apatite group None
41 00.2.6.209.0007 Copper Crystallized.
42 00.2.9.75.0010 Dolomite None
43 00.2.4.45.0003 Galena Massive galena and quartz. Color: GY
44 1995.36.0014 Crocoite Small crystals on matrix. Color: RD-OR
45 00.2.13.513.0003 Sphalerite Hand- nice black crystal cluster. Miniature - calcite cleavage fragment Color: BR
46 1970.47.1.0212 Galena None
47 1990.53.0130 Copper None
48 00.2.9.52.0006 Hematite Earthy, round. (Stream trumbled). Color: RD-BK
49 00.2.5.101.0001 Quartz Crystal.
50 2006.15.0035 Chrysoprase Medium in size chrysoprase specimen, apple green rock encased in matrix of host rock, dull, waxy to vitreous luster, 6-7 on hardness scale; silicon dioxide Color: Green
51 00.2.3.670.0007 Feldspar Albite feldspar.
52 1986.16.74.0001 Calcite On gray limestone. Catalog says that 10 out of 12 specimens were deaccessioned in 6/93.
53 00.2.6.197.0007 Gypsum White, massive; initials E. R. scratched on surface
54 1990.53.0242 Gypsum Var. selenite; specimen d - single clear crystal; specimens abcd - dlusters of small crystals with 2 or 3 larger protruding crystals
55 00.2.9.67.0013 Muscovite Crystal. Color: CL
56 00.2.4.38.0003 Marcasite Small crystals some blackened with quartz.
57 1990.53.0380 Linarite None
58 00.2.10.153.0004 Calcite Geode.
59 00.2.5.143.0008 Quartz, var. opal None
60 1973.10.0011 Meteorite, stony None
61 00.2.4.11.0005 Sulfur Massive; depositional.
62 00.2.3.659.0004 Pyrrhotite Massive. Color: YL
63 00.2.3.659.0005 Wolframite (Ferberite) With Tunctate decomposition.
64 1990.53.0063 Galena Cluster of cubes dotted with small sphalerite crystals. Color: GY
65 00.2.6.236.0005 Dolomite None
66 1995.36.0047 Vanadinite About 1/4" hexagonal crystals scattered on matrix. Color: RD, GY Vanadinite image
67 1970.47.1.0364 Feldspar None
68 1990.53.0177 Wulfenite Small, orange crystals scattered on matrix, pyramidal to 1/8"
69 00.2.9.56.0007 Pyrolusite Massive, showing fibrous sprays. Color: GY
70 00.2.4.28.0008 Sphalerite Massive, rough cleavage faces & crystals.
71 1990.53.0311 Quartz, geode Other half of 1990.53.314
72 00.2.5.105.0010 Quartz, smoky Smoky quartz.
73 2006.15.0086 Quartz Quartz-Agate Medium in size specimen of "enhydro" agate, bands of translucent "water" type substance-filled inside green host rock, one polished face, vitreous luster, 7 on hardness scale Color: Green/Blue
74 00.2.9.94.0005 Cassiterite Fine, twinned, shiny crystals to 1/2". Color: BK
75 00.2.3.675.0009 Titanite None
76 00.2.3.642.0003 Copper Copper, native.
77 1987.3.87.0006 Calcite Crystals on gray limestone. Catalog says that 48 out of 54 specimens were deaccessioned in 6/93.
78 00.2.6.201.0012 Rhodochrosite None
79 1990.53.0279 Beryl None
80 00.2.9.70.0001 Tourmaline group Color: GR,BK
81 00.2.4.41.0004 Franklinite Franklinte and zincite granules with willemite. Color: BK
82 00.2.10.189.0005 Calcite Crystals.
83 00.2.6.196.0002 Barite Massive, white.
84 1970.47.1.0101 Gypsum Clear crystal group.
85 00.2.4.17.0011 Galena Crystal cluster. Color: GY
86 00.2.3.664.0004 Clinochlore None
87 1990.53.0100 Vanadinite (endlichite) Dark brown, spiky crystals to 1/4" on matrix.
88 00.2.8.495.0001 Covellite Massive blue-black covellite between quartz crystals w/minor chalcopyrite
89 1970.47.1.0469 Gypsum Gray, massive.
90 00.2.15.331.0013 Aragonite None
91 1986.16.54.0007 Tourmaline group None
92 1990.53.0210 Quartz Crystals.
93 00.2.9.64.0009 Wollastonite None
94 00.2.4.31.0005 Pyrite Crystals on small quartz crystals. Massive pyrite with pyrite & quartz crystals in vug at one end.
95 1990.53.0346 Autunite Greenish yellow crystals, crumbling.
96 00.2.10.147.0003 Calcite Crystals. Catalog says that specimen was presented by S. H. Bishop.
97 00.2.5.113.0013 Quartz Quartz-wood agate.
98 2006.15.0119 Quartz var. Geode Medium in size quartz geode rough, unopened rock, presumably with massive quartz crystals inside, dull luster (vitreous within) 7 on hardness scale, (quartz) crystals unknown colors Color: Gray
99 11.11.0018 Calcite None
100 00.2.3.691.0004 Quartz Chalcedonic and crystal.
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