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Ex. Academy Of Natural Sciences, Philadelphia

Ex. Academy Of Natural Sciences, Philadelphia

15 results

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Fluorite on Quartz

$1,200

Pell Mine, England

A classic tetrahexahedral habit Fluorite crystal, probably from the [Pell Mine (St. Agnes Consols)], St.

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Fluorapatite with Quartz

$2,100

Panasqueira Mine, Portugal

A Muscovite and Quartz matrix richly coated with sparkling, pale smoky sky blue to deep teal interlocking

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Fluorite with Calcite

$1,500

Weardale, England

Translucent white Calcite crystals with a silky lustre are perched prettily on gemmy, deep purple twinned

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Smithsonite

$1,500

Farnberry Mine, England

A must for the Smithsonite collector, or collector of classic British minerals for that matter. A large

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Bornite

$900

Carn Brea Mine, England

An excellent cabinet specimen whose top surface is entirely covered with lustrous, dark blue tinted Bornite

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Quartz Var Smoky on Feldspar

$300

Mourne Mountains, Northern Ireland

A pretty cluster of deep Smoky Quartz crystals to 16 mm, nestled in a coarse Feldspar and Quartz granite

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Pyromorphite on Quartz

$875

Roughton Gill Mine, England

A druse of translucent Quartz crystals, measuring to 5 mm, have a brown iron oxide coating that creates a

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Cerussite

$750

Roughton Gill Area, England

A specimen that has certainly been on its travels in historic collections and dealerships. The specimen is

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Wulfenite

$1,500

Erupcion Mine, Mexico

A fine specimen consisting of many blocky tabular well formed Wulfenite crystals to 1.2cm on

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Sylvanite

$2,375

Baia de Aries, Romania

A rich specimen of this rare Gold Telluride from the old (pre Roman?) mining area once called Offenbánya in

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Fluorite With Quartz

$1,500

Weardale, England

A tremendous specimen of Fluorite from the classic Fluorite area of Weardale in England. The Fluorite crystals

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Adularia Feldspar

$2,100

Medel Valley, Switzerland

A cabinet specimen of twinned Adularia from the famous Medel Valley, Switzerland. The Adularia is seen as a

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Mimetite

$400

Dry Gill Mine, England

Rich coverage of yellowish green Mimetite crystals with wet looking lustre and measuring to 5mm in size, on a

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Olivenite on Quartz

$850

Wheal Unity, England

Pale green sparkling Olivenite has formed as a velvety botryoidal layer to over 5mm thick growing upon a

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Native Copper

$500

Cornwall, England

Very fine Native Copper crystals have grown in a pleasing dendritic formation. Labelled as Cornwall on the