Displaying 701 - 800 of 42096
Cat. # Name Description
701 Cinnabar None
702 Cinnabar Crystalline coating. Color: RD
703 Chalcocite Black, massive with small quartz blebs.
704 Chalcocite Massive, brown-black.
705 Chalcocite Massive, tarnished to red-gold; pyrite present
706 Bornite Massive, dull black.
707 Bornite Massive, dark gray metallic; minor copper minerals (azurite/malachite)
708 Bornite Massive, dark gray.
709 Pyrrhotite Massive, black.
710 Nickeline Massive. Color: PK-OR
711 Calcite Crystals & pockets.
712 Gold Small gold flakes on quartz and feldspar.
713 Pyrite Miniature shows pyritohedral crystals; hand is compact aggregate
714 Pyrite One specimen has cubes of pyrite to 3/8" on quartz crystals. Other, massive pyrite in matrix. a. and b.
715 Pyrite Crystal faces on one side of rock layer.
716 Pyrite Thumbnails mostly massive; miniature has crystals at one end.
717 Pyrite Scattered crystals in iron matrix. Poor crystals on quartz.
718 Pyrite None
719 Pyrite Cubic crystals to 3/8" scattered among quartz crystals; tiny crystls with calcite on matrix
720 Pyrite Vial contains decomposed materail; 1 large partial strated crystal on pyrite matrix
721 Pyrite None
722 Pyrite One massive; other has striated crystals to 3/8" on an end.
723 Pyrite Crystals on quartz crystals to 1/4".
724 Pyrite Massive pyrite, one side coverd with 3/8" quartz crystals with larger pyrite (1/2") on quartz.
725 Pyrite Dubic crystals with iron-stained quartz crystals on massive pyrite & quartz matrix
726 Pyrite TN's - pieces of cubic crystals; miniatures - clusters of crystals
727 Pyrite Granular aggregate.
728 Pyrite Crystals on small quartz crystals. Massive pyrite with pyrite & quartz crystals in vug at one end.
729 Pyrite Partial crystals.
730 Pyrite Cabinet - cluster of striated crystals ; massive pyrite with quartz; massive - showing some crystal faces
731 Pyrite Brown cubic crystals from 1/8" x 1/8" - 3/8" x 3/8"
732 Pyrite Crystal clump.
733 Pyrite Brassy, striated crystals in pocket of granular pyrite
734 Pyrite Vial contains decomposed material; 1 cluster of crystals
735 Pyrite Granular aggregate with some quartz.
736 Pyrite Scattered pyrite in light gray matrix.
737 Pyrite Granular aggregate.
738 Pyrite Pyrite finely disseminated in galena(?).
739 Pyrite Striated pyrite crystals with quartz.
740 Pyrite A few crystals embedded in quartz.
741 Quartz Quartz crystals on pyritiferous rock.
742 Pyrite Mostly ore material with quartz & feldspar; 1 hand specimen has cluster of cubic crystals
743 Pyrite TN - striated partial cube; miniature - bright, brassy cubic crystals to 18"; should be 4 specimens
744 Pyrite Pyrite, chalcopyrite, gold or silver probably.
745 Pyrite All specimens a mixture of pyrite, quartz and crystals of both. Hand specimen is probably chalcopyrite on calcite crystals.
746 Pyrite Drusy pyrite on matrix.
747 Pyrite Small pyrite crystals lining nodule.
748 Pyrite Finely disseminated pyrite.
749 Pyrite Crystals in matrix.
750 Pyrite Ore samples with quartz & galena; possible rhodocrosite
751 Chalcopyrite Massive, in quartz.
752 Chalcopyrite Nodule.
753 Chalcopyrite Massive, possibly covellite as a decomposition product
754 Chalcopyrite Massive.
755 Chalcopyrite Massive, disseminated.
756 Chalcopyrite Poor crystals on matrix.
757 Chalcopyrite None
758 Marcasite Small crystals, metallic gold, in quartz.
759 Marcasite Small crystals some blackened with quartz.
760 Marcasite One - a nodule of marcasite; one - small crystals in quartz seam (starting to disintegrate)
761 Marcasite Glass tube - small pieces & dust; TN - decomposing; M - small crystal aggregate
762 Marcasite Massive with crystal faces; possible chalcopyrite also
763 Marcasite Cockscomb crystal group, partially changed; sprayed 3/5/75
764 Marcasite Brassy crystal aggregate; some quartz.
765 Marcasite Crystals on sandstone matrix.
766 Marcasite Cubic crystals covered with drusy quartz, therefore possibly pyrite
767 Chalcopyrite Massive, few scattered crystals; some galena & pyrite
768 Pyrite ? Crumbling very badly.
769 Pyrite Fairly stable, brassy crystal groups forming botriedal surface
770 Chalcopyrite Massive, with galena; dull black.
771 Silver Ore.
772 Silver 80%.
773 Covellite Massive, dark blue-black.
774 Pyrargyrite Massive, black.
775 Halite Numerous specimens, 2 tubes 109 and 100+ approx.
776 Halite None
777 Halite Isometric; 1 tube, numerous specimens, approx. 20+.
778 Halite Massive.
779 Halite Massive.
780 Carnallite One tube, undetermined #.
781 Fluorite Color: GR, BG Fluorite image
782 Fluorite None
783 Microcline (Feldspar group) Galenite and pyrite.
784 Cryolite None
785 Cryolite None
786 Halite Gummed label No. 1.
787 Halite None
788 Cuprite Massive with thin malachite veins. Color: BR
789 Cuprite Massive, also known as Tile Ore (Dana); probably contains iron. Color: RD-BR
790 Cuprite Massive with malachite veins; earthy. Color: BR
791 Franklinite Franklinte and zincite granules with willemite. Color: BK
792 Franklinite Color: BK
793 Corundum None
794 Corundum Missing.
795 Quartz var. Chert Translucent, known as "Oriental topaz". Color: GD
796 Corundum var. Ruby Opaque. Color: RD
797 Franklinite Blebs of franklinite, zincite and willemite to 1/4". Color: BK
798 Willemite None
799 Corundum var. Sapphire Broken crystals. Color: BL
800 Galena Weathered crystal group. Color: GY