Greetings Ladies & Gents, my first disastercab in 27 years; click on the images for full size.
Brazilian Basalt based Agate (Chalcedony; hollow Flint agate; Moh's 6.5 & Quartz; Moh's 7.0).
Starting dimensions: 40mm (1.57 inch) long X 20mm (0.78 inch) wide X 20mm (0.78 inch) high.
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On the left hand side you can see the same fracture as seen in picture #4.
The part that looks like an impact fracture is semi-tranlucent Quartz.
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"Tigers eye" look a like, but no it is the base (bottom) of my disastercab where you can see the flaws!
The banding is a pair of florescent tubes on the ceiling.
1#: Split at top as seen in picture #1.
2#: An undercutting circle where the top florescent tube hit the stone on the right.
3#: There is still some bits of dop wax on the base around the edges.
The Stone had 3 major interal flaws to start with, it was 1 of 2 compulsary stones that i had no choice, but to use as part of my conditions for me joining my local lapidary club (
Scottish Minerals & Lapidary club) the oldest & longest running lapidary club in the UK in order to get access to a saws & diamond grinders.
The stone was finally polished with the radioactive Cerium Oxide on the Alpha wavelength.
Here's my second cab, it was polished on 90,000 Aluminum Oxide.
Please check out my Sticky's below.
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Please click images to open larger images in a new Tab, same with everything that is Underlined!
I currently have a 3lb Beach (UK), Lortone QT 12/66 (USA) rotaries & 2x Viking Vibrasonic
(Diamond Pacific) (USA) virbrating tumblers, with Silicon Carbide grit F80, F220, F600, F1200,
with Tin Oxide (1.0 micron) & Aluminum Oxide (1.0 micron & 0.3 micron) polishes.
I hail from (The Barony of Seabegs)
Bonnybridge,
Stirlingshire,
U.K, where
aliens (15mb)
sometimes come for a visit & about 4 miles west from that
monstrosity & 7 miles west of this new
monstrosity!
Sticky's: their contents are resource information 1#:
Vendors worldwide (2mb), 2#:
How to use the forum,
3#:
How to identify rocks & minerals, 4#:
Save money on expensive grits & polishes,
5#:
Aussie Lapidary Forum: Rock Tumbling Guide!