Check out the Quartz var. Amethyst with Epidote, Hemimorphite Crystal Cluster, Apatite Crystals with Quartz, Chabazite Crystal with Stilbite, Azurite Crystals with Malachite, Chalcopyrite with Calcite & Quartz, Fluorapophyllite with Stilbite, Stibnite Crystals on Quartz, Fluorite Crystal Cluster on Barite, Black Chalcedony with Stilbite, Pyrite & Chalcopyrite, Calcite and Barite Crystals on Fluorite, Fluorite on Quartz, Staurolite, Calcite Crystals, Crocoite Crystals on Limonite, Calcite on Amethyst, Galena Crystals on Matrix, Boltwoodite, Arrow Head Calcite on Chalcedony, Selenite Crystal Cluster, Hydroxy Apophyllites on Brown Scolecites, Barite Crystals on Matrix, Quartz with Apatite & Siderite and Siderite Crystals on Ferberite mineral specimens on this page.
#C3232 Quartz var. Amethyst with Epidote
Mun. Las Vigas de Ramírez, Veracruz, Mexico
16 x 15.5 x 3.5 cm
$750
SOLD
#C3234 Apatite Crystals with Quartz Crystal on Quartz
Panasqueira Mines, Panasqueira, Covilha, District of Castelo Branco, Portugal
9 x 7 x 3 cm
Ex-Jorge Diaz Asenjo Collection
$1,000
#C3235 Giant Size Chabazite Crystal with Stilbite
Mahad Quarry, Maharashtra, India
12.5 x 11 x 6.5 cm
$400
#C3236 Azurite Crystals with Malachite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
5.5 x 4.5 x 3.5 cm
Ex-Jorge Diaz Asenjo Collection
$450
SOLD
#C3237 Chalcopyrite, Quartz & Calcite
Baia Sprie Mine, Baia Sprie, Maramures, Romania
13.5 x 7.5 x 5 cm
$480
#C3238 Green Fluorapophyllite Crystals with Stilbite on Matrix
#C3254 Hydroxy Apophyllites on Brown Scolecites with Apophyllites
Jasai Quarries, Maharashtra, India
12.5 x 10.5 x 5 cm
$150
#C3255 Barite Crystals on Matrix
Sichuan, China
6.5 x 5.5 x 4 cm
Ex-Jorge Diaz Asenjo Collection
$300
#C3256 Quartz, Apatite & Siderite
Panasqueira Mines, Panasqueira, Covilha, District of Castelo Branco, Portugal
13 x 7 x 5 cm
Ex-Jorge Diaz Asenjo Collection
$325
#C3257 Siderite Crystals on Ferberite
Panasqueira Mines, Panasqueira, Covilha, District of Castelo Branco, Portugal
6.5 x 6 x 3 cm
Ex-Jorge Dias Asenjo Collection
$1,300
#C3258 Black Chalcedony with Stilbite Crystals
Wada, Raigad District, Maharashtra, India
12.5 x 6 x 3 cm
$75
SOLD
#C3233 Hemimorphite Crystal Cluster on Limonite
Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico
7.5 x 7.5 x 4.5 cm
$75
SOLD
Boltwoodite is a locally common mineral but in general it is quite rare. It forms from the oxidation and alteration of primary uranium ore minerals. It forms crusts that are found on uranium bearing sandstones. The crusts have a yellowish color and a vitreous or silky to pearly luster.
Remember, this is a radioactive mineral and should be stored away from other minerals that are affected by radioactivity and human exposure should be limited.
Stunning large plate of clear, purple tipped Amethyst crystals on an Epidote covered matrix from the famous Las Vigas finds.
Aesthetic clusters of glassy Hemimorphite crystals on Limonite.
Beautiful clustering of teal blue, gemmy Apatite crystals with a nice, clear Quartz crystal on a substrate of solid Quartz. Also appears to be a scattering of fine Siderite crystals.
A very large crystal of Chabazite (7.5x6.5x5.5 cm) with associated Stilbite.
Nice cluster of lustrous Azurite crystals (to 4 x 2 x 0.25 cm) with Malachite from the famous Tsumeb Mine.
Great combination of golden Chalcopyrite with Calcite coated Quartz crystals from the now closed Romanian mine.
Beautiful cluster of blocky Fluorapophyllite crystals on a plate of creamy white, lustrous Stilbite crystals.
Interesting coverage of silvery Stibnite crystals on a cluster of quartz with associated Siderite.
Alluring cluster of purple Fluorite crystals on Barite from the famous Berbes mines. The lustrous, water clear cubes (to 1.9 cm) have preferentially limpid or lightly frosted faces. In excellent shape, with only trivial periphery wear.
Intriguing and aesthetic configuration of Salmon colored Stilbite crystals and Black Chalcedony.
Solid plate of Chalcopyrite with coating of a sulfide mineral, and with embedded cubes of shiny, golden Pyrite and minor Quartz.
Pretty plate of golden Fluorite crystals with a trim of snow white Calcite rhombs and a crowning cluster of blue, gemmy Barite crystals.
Fine specimen of rare, botryoidal Fluorite crystals on a plate of Quartz.
Staurolite is famous for its twinned crystals that form into the shape of a cross. Its name comes from the greek for cross.
Beautiful aggregates of orange-red prismatic Crocoite crystals on Limonite.
A striking specimen from the less well-known San Vicente Mine. The mounded, banded, Amethyst crystal matrix is adorned with very striking, layered, "sandwich style," poker chip Calcite crystals to 1.9 cm and sprays of Calcite needles. The poker chip Calcite crystals are coated with a druse of secondary Calcite, giving them a nice sugary appearance. The Calcite crystals also resemble wheat sheave bundles tied with brown rope.
Silvery cubes og Galena on matrix.
Large, clear, arrow head shaped Calcite crystal (7 x 5 cm) on Chalcedony. Undamaged.
Wonderful specimen of famous Berbes Fluorite crystals with white blades of Barite. The purple Fluorite crystals are water clear. In fine condition.
An excellent large cluster of light golden, gemmy Selenite crystals.
Unusual and aesthetic blend of brown Scolecittes with two forms of Apophyllite, ie, pseudocubic Hydroxy Apophyllite and the more common Apophyllite crystals.
Nice cluster of gemmy, golden Barite crystals on matrix. Wonderful luster.
Attractive Quartz cluster with trim of Siderite and a single dark blue Apatite crystal.
Pristine, intergrown crystals of Siderite (to 3.5 x 2.5 cm) perched on a cluster of Ferberite crystals from the famous Panasqueira Mines.
