Khinite-4O
A structural variant of Khinite
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Colour:
Deep green
Hardness:
3½
Specific Gravity:
6.5 - 7.0
Crystal System:
Orthorhombic
Unique Identifiers
Mindat ID:
46478
Long-form identifier:
mindat:1:1:46478:1
GUID
(UUID V4):
(UUID V4):
395971da-33eb-4bf6-8c32-25f44539efaf
First published:
1978
Physical Properties of Khinite-4O
Colour:
Deep green
Streak:
Vivid green
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
On {001}.
On {001}.
Density:
6.5 - 7.0 g/cm3 (Measured)
Crystallography of Khinite-4O
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Fdd2
Cell Parameters:
a = 5.7491(10) Å, b = 10.0176(14) Å, c = 24.022(3) Å
Ratio:
a:b:c = 0.574 : 1 : 2.398
Unit Cell V:
1383.6 ų
Z:
8
Morphology:
Curved or barrel-shaped bipyramids bounded by a series of {hkl} forms.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.491 Å | (100) |
| 3.451 Å | (90) |
| 4.866 Å | (80) |
| 2.996 Å | (70) |
| 2.204 Å | (70) |
| 2.818 Å | (60) |
| 1.916 Å | (60) |
Comments:
Tombstone, Arizona, USA. Data from Williams (1978).
Fluorescence of Khinite-4O
Not fluorescent.
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Khinite-4O
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Williams, S.A. (1978) Khinite, parakhinite, and dugganite, three new tellurates from Tombstone, Arizona. American Mineralogist, 63, 1016-1019.
Cooper, M.A., Hawthorne, F.C. & Back, M.E. (2008): The crystal structure of khinite and polytypism in khinite and parakhinite. Mineralogical Magazine, 72, 763-770.
Hawthorne, F.C., Cooper, M.A. and Back, M.E. (2009): Khinite-4O (= khinite) and khinite-3T (= parakhinite). The Canadian Mineralogist, 47, 473-476.
Internet Links for Khinite-4O
mindat.org URL:
https://www.mindat.org/min-46478.html
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