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Schlossmacherite
Current inventory:  0 gems
 

Schlossmacherite

  
Schlossmacherite is named in honor of Professor Emeritus Karl Schlossmacher (18871980), Institute for Mineralogy and Petrography, Johannes Gutenberg University, Mainz, Germany and Honorary President of the German Gemmological Society.

Discovered in 1980;   IMA status: Valid (IMA approved)

 

Chemistry

 

 

Chemical Formula:

(H3O,Ca)Al3(SO4,AsO4)2(OH)6

 

Hydrated Hydrogen Calcium Aluminum Arsenate Sulfate Hydroxide

Molecular Weight:

463.69 gm

Composition: 

Calcium

2.16 %

Ca

3.02 %

CaO

Aluminum

17.46 %

Al

32.98 %

Al2O3

Arsenic

24.24 %

As

37.18 %

As2O5

Hydrogen

1.79 %

H

16.03 %

H2O

Sulfur

3.46 %

S

8.63 %

SO3

Oxygen

50.89 %

O

 

 

 

100.00 %

 

100.00 %

= TOTAL OXIDE

 

 

 

 

 

 

Classification

   

   

Mineral Classification:

Sulfates

Strunz 8th Ed. ID:

7/B.35-10

Nickel-Strunz 10th Ed. ID:

7.BC.10

 

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H
2O
C : With medium-sized and large cations

Related to:

Alunite Group. Beudantite Subgroup.

 

 

Crystal Data

   

   

Crystallography:

Trigonal - Hexagonal Scalenohedral

Crystal Habit:

As polycrystalline aggregates and crusts.

Twinning:

None

 

 

Physical Properties

   

 

Cleavage:

n/a

Fracture:

n/a

Tenacity:

Brittle

Moh's Hardness:

3.0 - 4.0

Density:

1.757 (g/cm3)

Luminescence:

None

Radioactivity:

Not Radioactive

 

 

Optical Properties

   

   

Color:

Gray Green, pale Green

Transparency:

Translucent to Opaque

Luster:

Vitreous to Waxy

Refractive Index:

1.597  Uniaxial ( + )

Birefringence:

0.000

Dispersion:

None

Pleochroism:

None

 

 

Occurances

   

   

Geological Setting:

A rare secondary mineral in the oxidized zone of a copper-bearing gold deposit.

Common Associations:

Alumopharmacosiderite, Barite, Ceruleite, Chenevixite, Goethite, Mansfieldite, Olivenite, Quartz

Type Locality:

Emma Luisa Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile

Year Discovered:

1980

View mineral photos:

Schlossmacherite Mineral Photos and Locations

 

 

More Information

   

   

 

Mindat.org
Webmineral.com

 

 


Schlossmacherite is a very rare secondary mineral in the oxidized zone of a copper-bearing gold deposit at the Emma Luisa gold mine, Guanaco district, about 100 km east-northeast of Taltal, Antofagasta, Chile. This is the only location in the world for Schlossmacherite. It is found as polycrystalline aggregates and crusts of pale green to grayish green.
 

  
Schlossmacherite gems for sale:

Schlossmacherite

Gem:

Schlossmacherite

Stock #:

SCHLOSS-001

Weight:

2.2260 ct

Size:

9.92 x 5.96 x 3.73 mm

Shape:

Rectangle

Color:

Moss Green

Clarity:

Opaque

Origin:

Emma Luisa Mine, Antofagasta, Chile

Treatment:

None (natural)

Price:

SOLD

Pictures are of the actual gem offered for sale.
Gem images are enlarged to show detail.

Schlossmacherite

A very rare gem from the Emma Luisa Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile with beautiful moss green color. This is the only gem I have seen that is pure Schlossmacherite and not mixed with Ceruleite or other minerals.

 

Ceruleite-Schlossmacherite

Gem:

Ceruleite & Schlossmacherite

Stock #:

CER-SCH-001

Weight:

6.1255 ct

Size:

19.99 x 11.33 x 3.63 mm

Shape:

Oval cabachon

Color:

Blue & Green

Clarity:

Opaque

Origin:

Emma Luisa Mine, Antofagasta, Chile

Treatment:

None (natural)

Price:

SOLD (but we have others)

Pictures are of the actual gem offered for sale.
Gem images are enlarged to show detail.

Ceruleite-Schlossmacherite

A beautiful combination of two very rare minerals: Ceruleite (blue) and Schlossmacherite (green). Ceruleite is only found at a few localities worldwide and Schlossmacherite is found only at the Emma Luisa Mine, Guanaco, Santa Catalina, Antofagasta Province, Chile. I love the combination of robin's egg blue and moss green!

 

 

I love Sarah