Adamite

n. descendant of Adam; person, human; nudist; member of a visionaries sect who imitate the state of Adam and prefer to walk around naked; type of green fluorescent mineral

This article is about the mineral, for the religious sect see Adamites. Adamite is a zinc arsenate hydroxide mineral, Zn2AsO4OH. It is a mineral that typically occurs in the oxidized or weathered zone above zinc ore occurrences. Adamite is usually yellow in color, but tints of green occur due to inclusion of copper substitutions in the mineral structure. Olivenite is a copper arsenate that is isostructural with adamite and there is considerable substitution between zinc and copper resulting in an intermediate called cuproadamite. Manganese, cobalt, and nickel also substitute in the structure. An analogous zinc phosphate, tarbuttite, is known.
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adj. adamitic

n. adamite

(n.)
One of a sect of visionaries, who, professing to imitate the state of Adam, discarded the use of dress in their assemblies.
  

(n.)
A descendant of Adam; a human being.
  

General Information:
 Chemical Formula:
Zn2(AsO4)(OH)
 Composition:
(Molecular Weight = 286.71 gm)
Zinc 45.61 % Zn
Arsenic 26.13 % As
Hydrogen 0.35 % H 
Oxygen 27.90 % O 
 Empirical Formula:
Zn2(AsO4)(OH)
 Locality:
TL: Chile, Atacama, Cha¤arcillo
 Name Origin:
Named after the French mineralogist Gilbert Joseph Adam (1795-1881).
Physical Properties:
 Cleavage:
[101] Good, [010] Poor
 Color:
yellow, green, violet, pink, or yellowish green.
 Density:
4.3 - 4.5, Average = 4.4
 Diaphaniety:
Subtransparent
 Habits:
Tabular - Form dimensions are thin in one direction., Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces., Encrustations - Forms crust-like aggregate s on matrix.
 Hardness:
3.5 - Copper Penny
 Luminescence:
Fluorescent and phosphorescent.
 Luster:
Vitreous - Resinous
 Streak:
white
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