Sapphiremines are from alluvial deposits or from primary underground workings.
Commercial mining locations for sapphire and ruby include (but are not limited
to) the following countries: Afghanistan, Australia, Myanmar/Burma, Cambodia,
China, Colombia, India, Kenya, Laos, Madagascar, Malawi, Nepal, Nigeria,
Pakistan, Sri Lanka, Tajikistan, Tanzania, Thailand, United States, and
Vietnam. Sapphires from different geographic locations may have different
appearances or chemical-impurity concentrations, and tend to contain different
types of microscopic inclusions. Because of this, sapphires can be divided into
three broad categories: classic metamorphic, non-classic metamorphic or
magmatic, and classic magmatic.
Sapphires
from certain locations, or of certain categories, may be more commercially
appealing than others, particularly classic metamorphic sapphires from Kashmir,
Burma, or Sri Lanka that have not been subjected to heat-treatment.
The
production of sapphire has been improving the development of hard windows, circuits,
etc. the improvement of sapphire also leads to the going up production of
tungsten parts, which are used for production process of sapphire.
If there is any other question referring to
tungsten crucible for sapphire growth furnace, please feel free to contact us
through the following methods.
Email: sales@chinatungsten.com
Tel.: +86 592 512 9696/ +86 5925129595
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