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Formula: CaZn2(PO4)2.2H2O
Hydrated normal phosphate, orthorhombic paramorph of monoclinic
parascholzite
Crystal System: Orthorhombic
Specific gravity: 3.11 to 3.13 measured, 3.10 calculated
Hardness: 3 to 3½
Streak: White
Colour: White, colourless
Environments:
Pegmatites
Sedimentary environments
Scholzite may be a primary mineral, but it is more
commonly a secondary mineral in
zinc phosphate-bearing granite
pegmatites and sediments (HOM). Common associates
include collinsite, muscovite,
parascholzite and sphalerite
(Mindat).
Localities
At the Block 14 opencut, Broken Hill, Broken Hill district, Yancowinna county, New South Wales, Australia, cavities and
fractures in garnet sandstone
are commonly lined with a thin crust of yellow
corkite-hinsdalite. Some of these
spaces contain scholzite, pyromorphite and
cuprian tarbuttite
AJM 3.1.51).
At Reaphook Hill, Martins Well station, South Flinders Ranges, Flinders Ranges, South Australia, scholzite is
associated with parahopeite and
collinsite
(HOM).
At Richelle, Visé, Liège, Wallonia, Belgium, scholzite occurs as a
secondary mineral produced during weathering of sedimentary
rocks containing low-grade zinc and phosphate minerals
(Dana).
At the Otov II pegmatite, Otov, Domažlice District, Plzeň Region, Czech Republic, scholzite occurs as a
primary product of crystallisation in
zinc and phosphate bearing
pegmatites
(Dana).
There are two co-type Localities, the Hagendorf North and South Pegmatites, Hagendorf, Waidhaus, Neustadt an der
Waldnaab District, Upper Palatinate, Bavaria, Germany. There scholzite occurs as a
secondary mineral derived from alteration of phosphates in a
granite pegmatite
(Dana). Associated minerals include parascholzite,
sphalerite, triplite,
feldspar and quartz; these are
primary minerals and scholzite is
secondary
(AM 36.382, HOM).
At the Kabwe mine, Central Province, Zambia, scholzite has been found with
parahopeite on goethite
(R&M 94.2.134) associated with tarbuttite
(HOM).
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