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63.2: 3D mineral samples, set 1

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    Here are 10 samples of minerals that you will use to answer lab questions. Examine each sample in detail by rotating it and exploring its shape and physical characteristics. Properties of each mineral are listed in the table below the 3D model.

    Mineral A

    Mineral unknown "A" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 1 white Absent No Very soft. Feels soapy to the touch.

    Mineral B

    Mineral unknown "B" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 2.5 – 3 gray-brown to white 1 (excellent) No can be split into thin, flexible sheets

    Mineral C

    Mineral unknown "C" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 3 white Excellent; 3 directions, NOT at 90\(^{\circ}\) to each other No fizzes when HCl is applied

    Mineral D

    Mineral unknown "D" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 5.5-6 white to pale gray Moderate. 2 planes, at about 90\(^{\circ}\) to each other No color dark green to brown or black; forms short, 8-sided prisms

    Mineral E

    Mineral unknown "E" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 2 – 2.5 white 1 (perfect) No can be split into thin, flexible sheets

    Mineral F

    Mineral unknown "F" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 6.5 white 2, at 90\(^{\circ}\) No lamellae

    Mineral G

    Mineral unknown "G" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 7 None (too hard to streak) Absent Conchoidal No reaction to HCl. Comes in many colors.

    Mineral H

    Mineral unknown "H" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 7 (too hard to streak) No Brittle; may show parting Dodecahedral crystals are distinctive.

    Mineral I

    Mineral unknown "H" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 2.5 white Excellent: 3 planes at 90\(^{\circ}\) to each other (so it breaks into cubes) No Tastes salty.

    Mineral J

    Mineral unknown "J" by callanbentley on Sketchfab

    Luster Hardness Color of streak Cleavage? Fracture? Other properties
    nonmetallic 5.5-6 white to pale gray Good. 2 planes, at about 60\(^{\circ}\)/120\(^{\circ}\) to each other No color dark gray to black; forms prisms.

    Submit your answers to your instructor.css.php

    This page titled 63.2: 3D mineral samples, set 1 is shared under a CC BY-NC 4.0 license and was authored, remixed, and/or curated by Callan Bentley, Karen Layou, Russ Kohrs, Shelley Jaye, Matt Affolter, and Brian Ricketts (VIVA, the Virginia Library Consortium) via source content that was edited to the style and standards of the LibreTexts platform.