University of Northern Iowa

Silicates (Phyllosilicates)

Displaying 101 - 135 of 135
Catalog # Name Description
101 1970.74.1458M Chrysotile Fibrous. Color: BR
102 1970.74.1467M Prehnite None
103 1970.74.1479M Biotite (Mica group) Biotite mica.
104 1970.74.1490M Serpentine group Group. Massive; pearly luster. Color: GR
105 1970.74.1534M Prehnite None
106 1970.74.1555M Prehnite Prehnite and calcite in vug.
107 1970.74.1591M Lepidolite Massive, with quartz. Color: LV
108 1970.74.1606M Lepidolite Cut slab. Color: LV
109 1970.74.1669M Talc Variety of talc known as steatite usually desiribed as compact, felted and light gray. Specimen also contains "serpentine". Color: PR
110 1970.74.1678M Prehnite None
111 1974.37.0005 Phlogopite Layers of muscovite still attached to & in pegmatite material. Color: WH
112 1978.34.4.0001 Chrysocolla Massive. Color: AQ
113 1987.3.0119 Chrysocolla None
114 1990.53.0014 Apophyllite On prehorite. Color: WH Apophyllite image
115 1990.53.0051 Muscovite Small laminae mass. Known as fushite, a chromium bearing variety. Color: GR
116 1990.53.0052 Muscovite Variety known as fushite with the addition of chromium. Color: GR
117 1990.53.0070 Clinochlore Garnet crystal pseudomorph. Color: GR
118 1990.53.0104 Clinochlore Garnet crystal pseudomorph. Color: BK GR
119 1990.53.0132 Chrysotile Massive, fibrous. Color: GD
120 1990.53.0162 Talc Foliated massive, small pyrite cubes. Color: GR
121 1990.53.0231 Serpentine group Group. Schist with 1/2" x 1/4" crystals scattered throughout. Color: GR
122 1990.53.0246 Prehnite None
123 1990.53.0255 Phlogopite Twinned book. Color: GR
124 1990.53.0260 Prehnite None
125 1990.53.0377 Chrysotile Fibrous. Color: GR
126 1990.55.0141 Serpentine group Color: GR
127 1995.36.0012 Margarite Seam of foliated margarite. Color: PK
128 1995.36.0024 Muscovite Mass of laminae. Color: SL,YL
129 1995.36.0034 Gillespite A rare mineral; in small blebs with sanbornite & celsian. Color: RD
130 1995.36.0036 Talc Scam of translucent talc. Color: GR-WH
131 1995.36.0039 Vermiculite Scaly aggregate. Color: BR
132 1995.36.0052 Phlogopite Typical specimen of thin transparent plates. Color: BK
133 1995.36.0053 Pyrophyllite Compact mass showing radiating crystals. Color: WH
134 1995.36.0054 Lepidolite Platy aggregate. Color: PR
135 1995.36.0062 Muscovite Var. fushite - chromium bearing, massive, fine grained. Color: GR