Displaying 701 - 800 of 40274
Cat. # Name Description
701 Quartz With galenite, chalcopyrite and barite, native copper, azurite.
702 Galena Still retains a partial Foote label. Color: GY
703 Hematite Massive, specular. Color: GY
704 Quartz Quartz, chalcopyrite, barite (?), tarnished galenite.
705 Galena Pocket of cubo-octahedron with drusy quartz. Color: GY
706 Galena Massive galena on quartz crystals, some pyrite. Color: GY
707 Galena Silver ore, fine grained. Color: GY
708 Galena Massive; possibly argentiferous. Color: GY
709 Galena Silver ore, fine grained. Color: GY
710 Galena Coarse grained, massive. Color: GY
711 Galena None
712 Pyrite Mass of crystals on quartz crystals.
713 Pyrite Small pocket of 1/8" cubes. Color: GD
714 Galena Group of cubic crystals coated with drusy pyrites. Color: GY
715 Galena Massive galena in quartz with small amounts of chalcopyrite. Color: GY
716 Galena Massive ore samples with some chalcopyrite. Color: GY-BK
717 Galena And chalcopyrite.
718 Galena And chalcopyrite.
719 Chalcopyrite Massive, with pyrite & quartz.
720 Sphalerite Hand: massive intermixed with chert . Miniature: sphalerite crystals on quartz crystals
721 Sphalerite Matrix covered on both sides with sphalerite crystals to 1/2". Crystal system Cubic/iso. Color: BK,RD
722 Sphalerite None
723 Sphalerite Crystals to 1/8" - 1/4" on chert matrix.
724 Sphalerite Massive; 1 miniature has weathered crystals with chalcopyrite crystals
725 Sphalerite Massive sphalerite in chert.
726 Sphalerite Massive.
727 Sphalerite Two glass vials of crushed sphalerite.
728 Sphalerite Massive; specimen is cracking.
729 Sphalerite Crushed.
730 Sphalerite Dark crystals to 1/2" covering top of piece; also crystals on bottom partially in chert
731 Sphalerite Massive.
732 Sphalerite Sphalerite or blende, zinc ore.
733 Sphalerite Massive, some cleavage faces; miniature has rough, dull crystals
734 Sphalerite Massive, rough cleavage faces & crystals.
735 Sphalerite Massive, rough cleavage faces & crystals.
736 Cinnabar Specimen crumbling.
737 Cinnabar Tiny crystals scattered on matrix. Color: RD
738 Cinnabar Ore sample showing primarily blue copper stain. Color: ML
739 Cinnabar None
740 Cinnabar Crystalline coating. Color: RD
741 Chalcocite Black, massive with small quartz blebs.
742 Chalcocite Massive, brown-black.
743 Chalcocite Massive, tarnished to red-gold; pyrite present
744 Bornite Massive, dull black.
745 Bornite Massive, dark gray metallic; minor copper minerals (azurite/malachite)
746 Bornite Massive, dark gray.
747 Pyrrhotite Massive, black.
748 Nickeline Massive. Color: PK-OR
749 Calcite Crystals & pockets.
750 Gold Small gold flakes on quartz and feldspar.
751 Pyrite Miniature shows pyritohedral crystals; hand is compact aggregate
752 Pyrite One specimen has cubes of pyrite to 3/8" on quartz crystals. Other, massive pyrite in matrix. a. and b.
753 Pyrite Crystal faces on one side of rock layer.
754 Pyrite Thumbnails mostly massive; miniature has crystals at one end.
755 Pyrite Scattered crystals in iron matrix. Poor crystals on quartz.
756 Pyrite None
757 Pyrite Cubic crystals to 3/8" scattered among quartz crystals; tiny crystls with calcite on matrix
758 Pyrite Vial contains decomposed materail; 1 large partial strated crystal on pyrite matrix
759 Pyrite None
760 Pyrite One massive; other has striated crystals to 3/8" on an end.
761 Pyrite Crystals on quartz crystals to 1/4".
762 Pyrite Massive pyrite, one side coverd with 3/8" quartz crystals with larger pyrite (1/2") on quartz.
763 Pyrite Dubic crystals with iron-stained quartz crystals on massive pyrite & quartz matrix
764 Pyrite TN's - pieces of cubic crystals; miniatures - clusters of crystals
765 Pyrite Granular aggregate.
766 Pyrite Crystals on small quartz crystals. Massive pyrite with pyrite & quartz crystals in vug at one end.
767 Pyrite Partial crystals.
768 Pyrite Cabinet - cluster of striated crystals ; massive pyrite with quartz; massive - showing some crystal faces
769 Pyrite Brown cubic crystals from 1/8" x 1/8" - 3/8" x 3/8"
770 Pyrite Crystal clump.
771 Pyrite Brassy, striated crystals in pocket of granular pyrite
772 Pyrite Vial contains decomposed material; 1 cluster of crystals
773 Pyrite Granular aggregate with some quartz.
774 Pyrite Scattered pyrite in light gray matrix.
775 Pyrite Granular aggregate.
776 Pyrite Pyrite finely disseminated in galena(?).
777 Pyrite Striated pyrite crystals with quartz.
778 Pyrite A few crystals embedded in quartz.
779 Quartz Quartz crystals on pyritiferous rock.
780 Pyrite Mostly ore material with quartz & feldspar; 1 hand specimen has cluster of cubic crystals
781 Pyrite TN - striated partial cube; miniature - bright, brassy cubic crystals to 18"; should be 4 specimens
782 Pyrite Pyrite, chalcopyrite, gold or silver probably.
783 Pyrite All specimens a mixture of pyrite, quartz and crystals of both. Hand specimen is probably chalcopyrite on calcite crystals.
784 Pyrite Drusy pyrite on matrix.
785 Pyrite Small pyrite crystals lining nodule.
786 Pyrite Finely disseminated pyrite.
787 Pyrite Crystals in matrix.
788 Pyrite Ore samples with quartz & galena; possible rhodocrosite
789 Chalcopyrite Massive, in quartz.
790 Chalcopyrite Nodule.
791 Chalcopyrite Massive, possibly covellite as a decomposition product
792 Chalcopyrite Massive.
793 Chalcopyrite Massive, disseminated.
794 Chalcopyrite Poor crystals on matrix.
795 Chalcopyrite None
796 Marcasite Small crystals, metallic gold, in quartz.
797 Marcasite Small crystals some blackened with quartz.
798 Marcasite One - a nodule of marcasite; one - small crystals in quartz seam (starting to disintegrate)
799 Marcasite Glass tube - small pieces & dust; TN - decomposing; M - small crystal aggregate
800 Marcasite Massive with crystal faces; possible chalcopyrite also