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Exceptional Pyrite with calcite

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Exceptional Heart Shaped Formation with Icy Calcites
Located in London, GB
A stunning heart-shaped amethyst formation with a central rocket-shaped calcite covered with a blanket of amethystine quartz and black goethite. To the left an icy calcite covered ...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Amethyst Crystal Cluster with Exceptional Calcite Formation, Mineral Art
Located in London, GB
An incredible amethyst formation with central calcite "arch" and calcite spear. Two special calcite formations are shown here; the first is a beautiful arch covered with a blanket...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Exceptional “Excalibur” Amethyst Formation, Calcite, Agate, Quartz
Located in London, GB
With its extremely unusual central amethyst epimorph after calcite, this natural wonder evokes images of the legendary sword, Excalibur, magically fixed in the stone. Elsewhere we ...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Amethyst “Harp" with phantom calcites
Located in London, GB
This museum-quality Amethyst “harp” from Artigas, Uruguay, is a natural sculpture of exceptional beauty and rarity. The piece features a harmonious arrangement of high-quality Amethy...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Amethyst, Quartz

Wonderful Calcite with Epitaxial Goethite
Located in London, GB
This stunning formation consists of a large pyramidal calcite on a bed of deep purple amethyst. The split calcite with unusual epitaxial goethite and a second generation of amethys...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Triangular Geode Section with Perched Calcite
Located in London, GB
A beautiful triangular geode section in lilac amethyst with a gold coloured calcite perched on a bed of red druzy quartz. This piece was legally and ethically sourced directly in...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Triangular Geode Section with Perched Calcite
$5,200 Sale Price
30% Off
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Emerald on Calcite With Pyrite
Located in New York, NY
This true museum quality 1.74 lb. combination specimen from the Muzo emerald mines in Colombia features two large beautifully formed emerald crystals – each measuring approximately 1...
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2010s Natural Specimens

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Calcite with Pyrite From Chengzhou, China
Located in New York, NY
This formation of massive, beautifully formed, incredibly gemmy calcite crystals characteristic of the Chengzhou location came out of the ground over a decade ago and will make a cla...
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Large Cabinet Pyrite & Calcite Specimen
Located in Wormelow, Herefordshire
A very large cabinet pyrite and calcite specimen originating from Madagascar, displayed on one of our exclusive museum-quality painted plaster bases. Na...
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Antique 15th Century and Earlier Malagasy Natural Specimens

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Calcite with Pyrite from Guangxi Zhuang Autonomous Region, China
Located in New York, NY
Dachang Sn-polymetallic ore field, Nandan Co., Hechi Prefecture, Guangxi Zhuang Autonomous Region, China Large unusual rhombic crystal of translucent calcite with striations outli...
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Double Terminated Emerald Crystal On Calcite With Pyrite From Pakistan
By Deloris "Dee" Giltz 1
Located in Peshawar, PK
Product Information: Specimen Type: Emerald Crystals on Calcite Weight: 3 grams Dimension: H: 2 x W: 1.5 x D: 1 cm Origin: Swat Valley, KPK Province, Pakistan Treatment: None Descr...
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21st Century and Contemporary Pakistani Modern Natural Specimens

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Pyrite and Sphalerite with Calcite from Deveti Septemvri Mine, Madan District
Located in New York, NY
From Madan District, Rhodope Mountains, Bulgaria Sculptural formation of lustrous yellow-metallic pyrite crystals with with dark Spinel-law twinned sphale...
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