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Yeatmanite
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Yeatmanite
General Information:
Mn++9Zn6Sb+++++2Si4O28
(Molecular Weight = 1,690.61 gm)
Manganese 29.25 % Mn
Zinc 23.21 % Zn
Silicon 6.65 % Si
Antimony 14.40 % Sb
Oxygen 26.50 % O
Mn2+9Zn6Sb2Si4O28
Metamorphosed, weathered Zn-Mn deposit.
Franklin and Sterling Hill, Sussex County, New Jersey, USA.
Named for Pope Yeatman (1861-1953), U. S. Mining engineer.
Physical Properties:
[100] Good
clove brown.
4.91 - 5.02, Average = 4.96
Platy - Sheet forms (e.g. micas)., Anhedral Grains - Granular minerals without the expression of crystal shapes,
4 - Fluorite
Vitreous (Glassy)
pale brown
More details...
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