| 0802: |
Gypsum - Sold Cavnic, Maramures County, Romania 9.5 x 8.8 x 3.7 cm (3.7 x 3.5 x 1.5 inches) A plate of matrix with a generous covering of colorless, water clear gypsum crystals. The longest gypsum is 2.7 cm. A few bruised terminations, as is common given the softness of gypsum. |
| 1811: |
Quartz variety Smokey Quartz - Sold Sichuan, China 15.5 x 9.1 x 4.3 cm (6.1 x 3.6 x 1.7 inches) Wonderfully complex and aesthetic cluster of light smokey gray quartz crystals. Largest crystal is about 6 cm long and 2 cm wide. Most crystals are terminated and damage is very minor. Sits for display several ways. My favorite is shown in the first picture. |
| 2709: |
Wulfenite - $10 Ahumada Mine, Los Lamentos District, Chihuahua, Mexico 3.0 x 3.0 x 0.5 cm (1.2 x 1.2 x 0.2 inches) This heavy, tabular wulfenite is unusual for its large crystal size and thickness. Wulfenites are typically very thin but these are up to 1.0 cm think! It has a rich butterscotch-brown color, accented with dusting and/or inclusions of brown material (probably descloizite). Has some damage and/or contacted areas, and price reflects this. |
| 2728: |
Calcite - $8 Mexico 5.0 x 4.2 x 2.8 cm (2.0 x 1.7 x 1.1 inches) A large, colorless cleavage fragment which displays this mineral's classical rhombohedral cleavage quite well. Internal cracks show how this cleavage is repeated throughout the crystal (first picture). A pretty cool piece for such a common mineral. Comes with old Geology Department King's College label. |
| 3359: |
Calcite on Clamshell Fossil - Sold Rucks Pit, Fort Drum, Okeechobee County, Florida 6.3 x 4.1 x 3.5 cm (2.5 x 1.6 x 1.4 inches) Golden yellow calcite crystals on a partial clam fossil. I understand that as of October 2005 the clam-bearing limestone portion of the pit is under water and may never be accessible again. |
| 3496: |
Danburite and Calcite - $14 Aurora Mine, Charcas, San Luis Potosí, Mexico 5.9 x 4.7 x 3.1 cm (2.3 x 1.9 x 1.2 inches) Two danburite crystals, joined at the base, and partly coated with calcite. The largest danburite is 5.5 cm long. A few missing calcite terminations, but otherwise in good shape. |
| 3581: |
Calcite and Stilbite - Sold Pune, Maharashtra, India 6.8 x 6.0 x 4.5 cm (2.7 x 2.4 x 1.8 inches) A golden yellow calcite sits among small stilbite crystals, all on a druzy carpet atop a basalt matrix. The calcite measures 2.5 cm tip-to-tip, and except for small nick, is undamaged. One stilbite blade is 1.7 cm long and doubly terminated. A fine Indian calcite. |
| 3738: |
Spodumene - Sold Elizabeth R Mine, Pala District, San Diego County, California 4.2 x 2.5 x 0.9 cm (1.7 x 1.0 x 0.4 inches) A very light green, water
clear spodumene crystal from a locality better known for its
spectacular morganites. Both ends have significant damage, making this
a good southern California or spodumene locality specimen.
|
| 3771: |
Fluorite - $6 Rogerley Mine, Frosterley, Weardale, North Pennines, County Durham, England 4.1 x 3.8 x 3.4 cm (1.6 x 1.5 x 1.3 inches) Fluorescent Large single crystal with a partial quartz druze. Contacted on several faces, and priced accordingly. Fluoresces blue under shortwave UV. Good representative Rogerley fluorite. |
| 3821: |
Pyromorphite - $9 Yangshu, Guangxi, China 6.7 x 4.2 x 2.4 cm (2.6 x 1.7 x 0.9 inches) Deep green pyromorphite crystals rise up from the matrix. The longest crystal is 5 mm. The specimen has a small damaged area, and the price reflects this. |
| 3992: |
Scolecite - Sold Maharashtra, India 8.5 x 1.4 x 0.7 cm (3.3 x 0.6 x 0.3 inches) A large spray of mostly colorless scolecite needles. The brown patch is due to unidentified included material. Terminations are incomplete. A representative sample showing how long these crystals can become. |
| 4200: |
Calcite - $12 Berbes, Ribadesella County, Asturias, Spain 6.3 x 5.2 x 5.1 cm (2.5 x 2.0 x 2.0 inches) A single translucent calcite crystal. Cleavages on three smaller faces provide convenient bases for several display options, and show reveal the traditional calcite rhombohedral symmetry inside the crystal, as outlined in brown inclusions. These same inclusions provide an obvious phantom. No damage elsewhere. |
