Ex. Academy Of Natural Sciences, Philadelphia

15 results

 Farnberry Mine, England
A must for the Smithsonite collector, or collector of classic British minerals for that matter.  A large
 Carn Brea Mine, England
An excellent cabinet specimen whose top surface is entirely covered with lustrous, dark blue tinted Bornite
Quartz Var Smoky on Feldspar
 Mourne Mountains, Northern Ireland
A pretty cluster of deep Smoky Quartz crystals to 16 mm, nestled in a coarse Feldspar and Quartz granite
Pyromorphite on Quartz
 Roughton Gill Mine, England
A druse of translucent Quartz crystals, measuring to 5 mm, have a brown iron oxide coating that creates a
Fluorite on Quartz
 Pell Mine, England
Classic Tetrahexahedral habit Fluorite probably from the Pell Mine (St. Agnes Consols), St. Agnes, Cornwall.
 Roughton Gill Area, England
A specimen that has certainly been on its travels in historic collections and dealerships. The specimen is
 Erupcion Mine, Mexico
A fine specimen consisting of many blocky tabular well formed Wulfenite crystals to 1.2cm on
 Baia de Aries, Romania
A rich specimen of this rare Gold Telluride from the old (pre Roman?) mining area once called Offenbánya in
Fluorite With Quartz
 Weardale, England
A tremendous specimen of Fluorite from the classic Fluorite area of Weardale in England. The Fluorite crystals
Adularia Feldspar
 Medel Valley, Switzerland
A cabinet specimen of twinned Adularia from the famous Medel Valley, Switzerland. The Adularia is seen as a
Apatite With Quartz
 Panasqueira Mine, Portugal
A matrix of Muscovite and Quartz is richly coated with sparkling pale blue Apatite crystals which interlock to
Fluorite With Calcite
 Weardale, England
Translucent white Calcite crystals with silky lustre are perched prettily on gemmy, deep purple twinned
 Dry Gill Mine, England
Rich coverage of yellowish green Mimetite crystals with wet looking lustre and measuring to 5mm in size, on a
Olivenite on Quartz
 Wheal Unity, England
Pale green sparkling Olivenite has formed as a velvety botryoidal layer to over 5mm thick growing upon a
Native Copper
 Cornwall, England
Very fine Native Copper crystals have grown in a pleasing dendritic formation. Labelled as Cornwall on the