Apatite gem stone rough in a good facet grade is another of the many desirable gems found in Madagascar. We are proud to
offer fine apatite rough to you.
Apatite gem stone rough
is viewed by most as an exotic, and somewhat unique gem material. It
appeals to consumers and collectors because of the striking colors and
rarity.
You can now buy Madagascar gem rough
in quantity directly from a strong source in Madagascar... conveniently, from our USA
office.
You can avoid the export and import problems and fees.
Until Madagascar Gems began selling
high-grade rough gem stones on the internet, the only way to get good
Madagascar apatite was to go there.
Apatite is actually three different minerals depending on the
predominance of either fluorine, chlorine, or the hydroxyl group.
That makes apatite a calcium fluoro (or chloro, or hydroxyl) phosphate.
Did you know that apatite is the mineral that makes up the teeth in all vertebrate animals
as well as their bones.
We offer some of the finest apatite to be found! Our
emerald green apatite is gorgeous. The color is so nice that most dealers
do not heat it to blue.
However... and if you must, this material can be heat
treated to a beautiful paraiba blue. Be advised that as with all
apatite heat treatment, there is significant risk of loss due to breakage.
Apatite in a neon or paraiba green (bottom
photo) also occurs. These beautiful stones are available in small
quantities. Use the link below to email us for availability and prices.
Natural yellow apatite is occasionally
available in small quantity.
Natural blue apatite is also available in small
quantities. Again, email us for availability and prices.
Apatite properties:
Hardness: 5
Refractive index:
1.632-1.646
Critical angle:
37.5°
Specific gravity:
3.17-3.23
Cleavage: Poor,
imperfect.
Fracture:
Conchoidal, brittle
Dispersion: Medium
(.013-.016)
Heat sensitivity:
High, dop with glue
Pleochroism:
Dichroic – Blue: very strong (blue to weak-blue or colorless);
Green: weak (green to yellow-green)
Chemistry:
Ca5 (PO4)3 (F,Cl,OH), Calcium (Fluoro, Chloro, or Hydroxyl) Phosphate
Treatments: Apatite
may be heat treated to bring out a better blue color and to remove
silk
Apatite is
brittle and heat sensitive, so
preforming the rough should be done with care.
Polishing can be
challenging. Use wax or tin/lead lap with alumina or cerium oxide; or
chrome or tin oxide Ultralaps. Vinegar may ease polishing
difficulties.
Apatite
and other gem stone rough prices are based on market prices and what we must pay to the miners.
The price we pay the miners considers all of the usual variables... quality, color, size of the pieces,
and availability of supply.
We work with the miners to buy for you
at a little less than market price. In exchange, we offer them a
steady market and occasional financial or other assistance.
Send us an email using the link below to request
prices and availability. Please inform us of:
Your affiliation in the gem trade
The quantities
that you contemplate buying
.
We offer many of the rough gem stones that occur in Madagascar.
If we do not list the one you are seeking, we can very likely get it for you.
Apatite gem stone rough from Madagascar will make
big money for
you!
Madagascar
Gems
Membre: Chambre de Commerce,
d'Industrie, d'Artisanat et d'Agriculture
Apatite
and other gem stone rough prices are based on market prices and what we must pay to the miners.
The price we pay the miners considers all of the usual variables... quality, color, size of the pieces,
and availability of supply.
