 | | Book (edition) | | scale. Mohs’ scale reads as follows: 1 2 3 4 5 Talc Gypsum Calcite Fluorite Apatite 6 7 8 9 10 Orthoclase...weathered and oxidized zone overlying a sulfide deposit; contains a concentration of hydrated iron oxide...primary mineral deposit in a vein or rock mass as opposed to a secondary (e.g., placer) deposit. luminescence...from softest (1) to hardest (10). The scale is: (1) talc, (2) gypsum, (3) calcite, (4) fluorite, (5) apatite...composed of two parallel faces. placer A mineral deposit formed by the mechanical (density) concentration |
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