Biotite Fluorrichterite

Biotite Fluorrichterite George Earl Farm Ontario, Canada

Vintage Ruby Spinel Biotite Sphere. Measures 4-1/4" diam. Condition: Good condition. Estimate 40.00 - 150.00

A substantial specimen of green emerald crystals in biotite mica matrix; supplied in a cardboard specimen tray. 680 grams, 15 cm (6 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory

Brazil On the soothing gray and shimmering black ground of quartz and biotite mica, great profusions of fine Brazilian emerald crystals leap in dramatic green contrast across the highly polished surfa

Item: Gold, Pyrite & Galena - Philippines Origin: Gango, Bukidnon, Mindanao, Philippines Size/Weight: 2.5x1.5x1.5 / 13 gram grey quartz with rich mineralization of crystalline galena, pyrite, biotite

Astrophylite in Biotite Russia

Fluor-Richterite Wilberforce, Ontario, Canada

Canadian. 1950s. Backlit glass panel with liquid-filled glass tube letters. This rare, animated sign features bubbling letters and a lighted panel. Tagged, "Biolite, Inc" on the back. 5.75" x 13" x 4"

A well-formed, pseudo-hexagonal biotite mica crystal resting on a groundmass of massive biotite with accessory calcite. From the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd

. A superb specimen of aquamarine comprising three larger, gemmy, water clear, hexagonal, prismatic crystals, all twinned, and several smaller crystals, all set in a quartz matrix associated with lust

A substantial specimen of green emerald crystals in biotite mica matrix; supplied in a cardboard specimen tray. 680 grams, 15 cm (6 in.). Mineral Imports, London, UK.Ex Gregory, Bottley & Lloyd (Grego

Biotite on Anthophllite Russia

Biotite on Anthrophylite

A well-formed, pseudo-hexagonal biotite mica crystal resting on a groundmass of massive biotite with accessory calcite. From the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd

A lithium biotite mica specimen displaying silvery brown coloured, convoluted, thin plated aggregates. 415 grams, 12cm (4 3/4"). Ex Dr M. G. 'Sam' Weller, MBE, collection, Cornwall, UK; formerly Mauri

A large lithia biotite specimen displaying reddish brown foliated mass of mica sheets, with inked label reading: 'Li 33'. 550 grams, 91mm (3.5"). Ex Dr M. G. 'Sam' Weller, MBE, collection, Cornwall, U

Biotite Mica, and Muscovite Mica, largest measuring 7" x 3" x 4"

Emerald Cabochon Ethiopia A double-sided oval emerald cabochon of vivid forest green hue color when examined with transmitted light, with biotite crystal inclusions which are commonly seen in Ethiopia

Emerald Cabochon Ethiopia Sister stone with the previous Ethiopian cabochon, cut from the same rough. This oval double-sided emerald cabochon shows a dramatic biotite crystal inclusion against its viv

each: woodblock print, biotite, ganpi washi, (1)stamped and edition at the left(2)stamped and edition at the right

Two Quartzes with Inclusions and a Rose Quartz Including a kite-shaped colorless quartz with biotite mica inclusions, Pakistan, weighing approximately 28.59 carats and measuring 29.04 x 19.23 x 13.94m

A rich red gemmy, finely formed ruby crystal in a marble matrix, with accessory biotite, from Afghanistan; in old white card tray with old Gregory, Bottley and Lloyd label reading: 'RUBY in matrix, Ja

including x3 Biotite Containing 1.5% Lithium, from Trelavor Downs Nr. St. Day, Cornwall; Tourmaline with Molybdenite, From Higston Down, Gunnislake, Cornwall; x2 Jamsonite Treore Mine, Port Isaac, Cor

An emerald crystal in quartz, from Brazil, with one prominent emerald and several smaller, less prominent emeralds, the quartz with accessory biotite, in white card tray with label reading: 'EMERALD I