|
Dauphine Twin Smokey Quartz July 10, 2013 · 7 specimens An exciting new find of smokey Quartz from Malawi - but not from Mt. Malosa! These are from nearby Mulanje Mountain which is producing a similar suite of minerals as Mt. Malosa. Aside from the obvious high degree of quality of the crystals, much more so than what is seen from Mt. Malosa, the crystals are complex in form. I believed them to be Dauphine twins and showed them to noted Quartz experts Si and Ann Frazier who confirmed they were indeed Dauphine twins. Dauphine twins are penetration twins along the C-axis with a characteristic bevelled face in either the upper right or left corner of a prism face, as shown in the idealized figure and example below. |
TU131 - Quartz sold
Mulanje Mountain, Malawi
Cabinet - 14.5 x 6.2 x 4.5 cm
Gem quality smokey Quartz crystal, largest of the lot, and highly transparent. Bevelled faces are present on the top left corner of 3 prism faces indicating Dauphine twinning. The regular faces have high luster while the bevelled faces have a matte luster. Complex but undamaged crystal.
TU133 - Quartz sold
Mulanje Mountain, Malawi
Cabinet - 10.5 x 4.8 x 3.5 cm
Gem quality smokey Quartz crystal, completely transparent top to bottom. Bevelled faces are present in the upper left corner of 3 prism faces indicating Dauphine twinning. The regular faces have high luster while the bevelled faces have a matte luster. Complex and undamaged crystal. Superb!!
TU135 - Quartz sold
Mulanje Mountain, Malawi
Small Cabinet - 7.5 x 7 x 7 cm
Floater cluster composed of about 12-15 double terminated Dauphine twin smokey Quartz crystals. Many of these show text book Dauphine twin form with bevelled faces on alternate corners of each prism face.
TU137 - Quartz sold
Mulanje Mountain, Malawi
Cabinet - 10 x 4.5 x 4 cm
Gem quality smokey Quartz crystal, highly transparent with deep smokey color - but not so dark and you can easily see right through it. Bevelled faces are present on the upper right corner of a prism face. The regular faces have high luster while the bevelled faces have a matte luster. Great crystal!
TU138 - Quartz sold
Mulanje Mountain, Malawi
Small Cabinet - 8 x 7 x 5 cm
'Swiss' quality smokey Quartz crystals atop Feldspar. Bevelled faces are present on the largest Quartz's prism faces, indicating Dauphine twinning. Largest crystal is 5cm tall. Highly transparent and undamaged
TU139 - Quartz sold
Mulanje Mountain, Malawi
Cabinet - 11 x 4 x 3.5 cm
Gem quality smokey Quartz crystal, highly transparent. A bevelled face is present in the upper right hand corner of one prism face, indicating Dauphine twinning. The regular faces have high luster while the bevelled face has a matte luster. Backside has an indentation near the base where another crystal was intergrown. Undamaged.
TU141 - Quartz sold
Mulanje Mountain, Malawi
Miniature - 5 x 3.5 x 1.5 cm
Gem quality smokey Quartz crystal, completely transparent top to bottom. Bevelled faces are present on the upper right hand corner of two prism faces, indicating Dauphine twinning. The regular faces have high luster while the bevelled faces have a matte luster. Complex, undamaged 'Swiss' quality Quartz crystal.