Manganoan Calcite
SpiritRock Shop
Item # MNC02130105
Scott Williams Mineral
Company Manganoan
Calcite from Peru

$124.00
Museum Specimens
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Look at this beauty! It is Manganoan Calcite on a quartz and manganese base from
the Pachapaqui District,  Bolognesi Province, Ancash Department, Peru.
Manganoan calcite is calcite with a high manganese content. This gives the mineral
a pink color, darker with higher content of manganese. This specimen is a
fluorescent mineral as well!

This specimen comes with specimen card from the
Scott Williams Mineral Company
Oberlin, Kansas
For more Information about Scott Williams Mineral Company and his career...
http://www.mineralogicalrecord.com/labels.asp?page=1&colid=484

This specimen weighs 13 oz or 0.81 lbs (368g)
and measures 3.7 x 2.7 x 2.3 inches (9.5 x 6.9 x 5.9cm)


Manganoan calcite or Manganocalcite is a variety of calcite rich in manganese, which gives the
mineral a pink color. It was first reported from the Bansk tiavnica Mining District, Slovak Republic,
but is widely distributed around the world, notably at Naica, Chihuahua, Mexico, in the Cave of
Swords, Bulgaria and Peru.

Manganoan calcite is sometimes confused with rhodochrosite. The amount of manganese in
Manganocalcite varies at different localities. Rhodochrosite cannot be reliably distinguished from
kutnahorite or Manganoan calcite by visual examination.

Manganoan Calcite is a Calcium Carbonate with manganese. The more manganese in the mineral,
the darker the pink is and even starts to become more red. Since Manganocalcite and
Rhodochrosite are both found around manganese fields, mistaken identification of these minerals
is easily made in the field.

Rhodochrosite on the other hand is a Manganese Carbonate. Distinguishing between Manganoan
Calcite and Rhodochrosite is easiest done with the use of an Ultraviolet Light Source. Manganoan
Calcite fluoresces..Rhodochrosite does not fluoresce.




From Wikipedia, the free encyclopedia     
http://en.wikipedia.org/wiki/Manganoan_Calcite

http://en.wikipedia.org/wiki/Kutnahorite
13W SW Ultra Violet Light
Item # MNC02137593
Scott Williams Mineral
Company Manganoan
Calcite on Pyrite &
Tetrahedrite from Peru

$85.00


Exceptional Specimen of Manganoan Calcite on a bed of Iron Pyrite and
Tetrahedrite with quartz from the Pachapaqui District,  Bolognesi Province, Ancash
Department, Peru. Manganoan calcite is calcite with a high manganese content.
This gives the mineral a pink color, darker with higher content of manganese. This
specimen is a fluorescent mineral as well!

This specimen comes with specimen card from the
Scott Williams Mineral Company
Oberlin, Kansas
For more Information about Scott Williams Mineral Company and his career...
http://www.mineralogicalrecord.com/labels.asp?page=1&colid=484

This specimen weighs 8.4 oz or 0.53 lbs (240g)
and measures 2.8 x 2.1 x 1.4 inches (7.3 x 5.4 x 3.7cm)