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This Quartz stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. This polished slice i...

This Quartz stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. This polished slice i...

This Quartz stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. This polished slice i...

This Quartz stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. This polished slice i...

From near Pantai Manakarra, Mamuju, Sulawesi, Indonesia   Double-sided cluster of translucent grape purple quartz agate in spherical formations wit...

From near Pantai Manakarra, Mamuju, Sulawesi, Indonesia Double-sided cluster of translucent grape purple quartz agate in spherical formations with ...

From Huanggang Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia, China Several intersecting doubly terminated quartz crystals colored green by inclusi...

From Deveti Septemvri Mine, Madan District, Rhodope Mountains, Bulgaria Sparkling cluster of lustrous translucent gray quartz crystals overgrown on...

From Tekhdi, Madhya Pradesh, India Lustrous transparent purple parallel Quartz Var. crystals with red hematite encrusted phantoms inside water clea...

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

from Paprok, Kamdesh District, Nuristan Province, Afghanistan Superb specimen of lustrous Rubellite var. pink tourmaline crystals fully terminated ...

From Hubei, China   Massive 8'' scepter shaped quartz crystal fully terminated with milky white core on a quartz cluster base. The scepter crystal ...

From Mt. Xueboading, Pingwu Co., Mianyang Pref., Sichuan Prov., ChinaA single crystal of bright orange octahedrals of scheelite on matrix of silver...

From Xuebaoding Mountain near Pingwu, Sichuan Province, ChinaTranslucent orange scheelite crystals on plate of limonite-stained muscovite mica crys...

Large pristine specimen of several hemispherical cluster crystals radiating colorless scolecite clusters in a parallel formation. The scolecite cry...

From Nasik District, Maharashtra, India Lustrous transparent-to-translucent colorless elongated scolecite crystals in a spray-shaped formation. The...

From Nasik District, Maharashtra, India Lustrous transparent-to-translucent colorless elongated scolecite crystals in a spray-shaped formation. The...

From Nasik District, Maharashtra, India Lustrous transparent-to-translucent colorless elongated scolecite crystals in a spray-shaped formation. The...