Buy tiffany rough opal direct from miners. Each piece has been slabbed to expose color and magical patterns from Utah USA .This opal has many minerals including bertrandite , beryl, calcite, chalcedony, cobalt, dolomite, fluorite, manganese oxide, rhodonite, quartz, zinc and white opal potch. It is the white potch that gives its classification under opals and most have purple hues or veins which was caused by fluorine gases and black veins were caused by manganese oxide.
So ideal to cut and polish and make incredible good pattern stones for jewelry .
Tiffany rough will fluoresence a bright green under short wave ultra violet light.
It is recommended to use a mask when cutting this rough and to use plant of water.
The nickname for this opal is Ice cream and one can see with the beautiful white polishes potch with bright purple looks so delicious
Most slabs are only $20 to 440 and are ideal to learn cutting on a s thick slabs are easy to work on but make sure plenty of water goes on this rough and don’t let it get hot as that’s what sauces dust and also wears diamonds out on blades or cutting n polishing wheels
Tifanny is top brand name and many people think because of tis name that it is expensive but is is good value for opal cutters