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| Hydrohetaerolite
is named for it being a HYDROus mineral, and its relation
to Hetaerolite. Hetaerolite is named from the Greek
word for companion, in allusion to the association with Chalcophanite on some type locality specimens.
| Discovered
in 1928;
IMA
status: Valid (pre-IMA; Grandfathered) |
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Chemistry
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Chemical
Formula: |
Zn2Mn3+4O8•(H2O) |
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Hydrated
Zinc Manganese Oxide |
Molecular
Weight: |
496.54 gm |
Composition: |
Manganese |
44.26 %
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Mn
|
63.59 %
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Mn2O3
|
Zinc |
26.34 %
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Zn
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32.78 %
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ZnO
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Hydrogen |
0.41 %
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H
|
3.63 %
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H2O
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Oxygen |
29.00 %
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O
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100.00 % |
|
100.00 % |
= TOTAL OXIDE |
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Classification
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Mineral
Classification: |
Oxides
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Strunz 8th
Ed. ID:
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4/B.05-50
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Nickel-Strunz 10th
Ed. ID:
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4.BB.10
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4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates) B : Metal: Oxygen = 3:4 and similar B : With only medium-sized cations
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Related
to: |
Hetaerolite
|
Synonyms: |
Backstromite,
Pseudopyrochroite, Wolftonite
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Crystal
Data
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Crystallography:
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Tetragonal - Ditetragonal Dipyramidal
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Crystal
Habit:
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Crystals
are fibrous, elongated || [110]; radiating, in
botryoidal crusts, finely granular, massive.
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Twinning:
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None
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Physical
Properties
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Cleavage: |
Distinct/Good;
Cleavable parallel to the elongation of the fibers.
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Tenacity:
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Brittle
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Moh's
Hardness: |
5.0
- 6.0
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Density:
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4.64 (g/cm3)
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Luminescence:
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None |
Radioactivity:
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Not
Radioactive
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Optical
Properties
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Color: |
Dark
Brown to Brownish Black; dark Brown in transmitted light
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Transparency: |
Opaque,
Transparent on thin edges
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Luster: |
Sub-Metallic
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Refractive
Index: |
2.100
- 2.260 Uniaxial ( + )
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Birefringence: |
0.160
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Dispersion: |
None
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Pleochroism: |
None
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Anisotrophism: |
Color in reflected light: creamy
Gray
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Occurances
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Geological
Setting: |
In
oxidized manganese-bearing zinc deposits. |
Common
Associations: |
Chalcophanite,
Hemimorphite, Smithsonite (Leadville, Colorado, USA);
Chalcophanite (Franklin, New Jersey, USA). |
Co-Type
Localities: |
Wolftone Mine, Carbonate Hill, Leadville, Leadville District, Lake County, Colorado, USA;
Passaic Pit (Marshall Mine, Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA |
Year
Discovered: |
1928 |
View
mineral photos: |
Hydrohetaerolite
Mineral Photos and Locations |
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More
Information
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|
Mindat.org Webmineral.com
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Hydrohetaerolite
is a somewhat rare mineral that is found in oxidized
manganese-bearing zinc deposits. It is often found associated
with Chalcophanite. This is a mineral that is rarely
faceted because it is typically dark brown, with a dull
to sub-metallic luster. It is really just a curiosity
for collectors of odd "gems".
Hydrohetaerolite
is found in the USA, from the Wolftone mine, Leadville,
Lake County, Colorado; at Sterling Hill, Ogdensburg,
Sussex County, New Jersey; in the Mohawk mine, San Bernardino
County, California; in Arizona, from the Campbell mine,
Bisbee, and the Emerald mine, Tombstone, Cochise County. In
England, from the Copperthwaite vein, Swaledale, North
Yorkshire. At Silvermines, County Tipperary, Ireland.
On Mont Chemin, Valais, Switzerland. In the Orzel Bialy
mine, Upper Silesia, Poland. In Japan, from the Maruyama
mine, Aomori Prefecture.
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Hydrohetaerolite
gems for sale:
We
have not photographed our Hydrohetaerolite gems. Please
check back soon.
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