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Adamite

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. Pure adamite is colorless, but usually it possess yellow color due to Fe compounds admixture. Tints of green also occur and are connected with copper substitutions in the mineral structure. Olivenite…

Occurrence & Overview

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Birefringence
δ = 0.055
Category
Arsenate mineral
Cleavage
{101}, good; {010}, poor
Color
Pale yellow, honey-yellow, brownish yellow, reddish; rarely white, colorless, blue, pale green to green, may be zoned
Crystal class
Dipyramidal (mmm) H–M symbol: (2/m 2/m 2/m)
Crystal habit
Wedge-like prisms typically in druses and radiating clusters; also smooth botryoidal masses

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Overview

Occurrence

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Map overview Semantic statistics

Adamite

Nodes40
Edges39
Triples32
Avg. degree1.95
Density0.05
Components1

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Adamite

Top relations

related to Occurrence · 10
Adamite → California, Durango, Found, Greece, It, Mapimí, Mexico, The, United States, Utah
Birefringence · 1
Adamite → δ = 0.055
Category · 1
Adamite → Arsenate mineral
Cleavage · 1
Adamite → {101}, good; {010}, poor
Color · 1
Adamite → Pale yellow, honey-yellow, brownish yellow, reddish; rarely white, colorless, blue, pale green to green, may be zoned
Crystal class · 1
Adamite → Dipyramidal (mmm) H–M symbol: (2/m 2/m 2/m)
Crystal habit · 1
Adamite → Wedge-like prisms typically in druses and radiating clusters; also smooth botryoidal masses
Crystal system · 1
Adamite → Orthorhombic
Dana classification · 1
Adamite → 41.06.06.03 Olivenite group
Formula · 1
Adamite → Zn2AsO4OH

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Important terminology

mineral zinc also arsenate olivenite copper yellow occurs structure intermediate zn2aso4oh typically colorless color green formula oxidized manganese references zone

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
AdamiteBirefringenceδ = 0.0551.00infobox
AdamiteCategoryArsenate mineral1.00infobox
AdamiteCleavage{101}, good; {010}, poor1.00infobox
AdamiteColorPale yellow, honey-yellow, brownish yellow, reddish; rarely white, colorless, blue, pale green to green, may be zoned1.00infobox
AdamiteCrystal classDipyramidal (mmm) H–M symbol: (2/m 2/m 2/m)1.00infobox
AdamiteCrystal habitWedge-like prisms typically in druses and radiating clusters; also smooth botryoidal masses1.00infobox
AdamiteCrystal systemOrthorhombic1.00infobox
AdamiteDana classification41.06.06.03 Olivenite group1.00infobox
AdamiteFormulaZn2AsO4OH1.00infobox
AdamiteFractureUneven to subconchoidal1.00infobox
AdamiteIMA symbolAd1.00infobox
AdamiteLusterVitreous1.00infobox
AdamiteMohs scale hardness3.51.00infobox
AdamiteOptical propertiesBiaxial (+/−)1.00infobox
AdamiteOther characteristicsMay fluoresce and phosphoresce lemon-yellow under SW and LW UV.1.00infobox
AdamiteRefractive indexnα=1.708 – 1.722, nβ=1.742 – 1.744, nγ=1.763 – 1.7731.00infobox
AdamiteSpace groupPnnm1.00infobox
AdamiteSpecific gravity4.32–4.48 measured1.00infobox
AdamiteStreakWhite to pale green1.00infobox
AdamiteStrunz classification8.BB.301.00infobox
AdamiteTenacityBrittle1.00infobox
Adamiteis azinc arsenate hydroxide mineral0.90text

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