18MA70 Liddicoatite Tourmaline
Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascara
1.16x 0.84x 0.59 cm
$395

A 5.20 ct bicolored tourmaline from Anjanabonoina.  While it has some obvious internal clarity issues, I immediately noticed it because of the insanely sharp boundary between the color zones.  Most bicolored tourmalines cut from Brazilian or Nigerian material are cut along the C axis (the length of the crystal) resulting in a longer finished stone-- and a color gradient that shifts gradually, as is usually the case with rough from those locations.  In this case, I strongly suspect the crystal was cut perpendicular to the length of the crystal--Anjanabonoina is famous for its tourmaline slices, these derive their color contrast from successive generations of outward tourmaline growth.  Most of that material is far too fractured to turn into a faceted stone (so it is sliced) but this bit of rough (while still somewhat included) was much cleaner than usual-- clean enough to produce a decent finished product.  In any case, I found the sharp contrast fascinating, and it's a really interesting piece.  It measures 11.6x 8.4x 5.9 mm. 







Similar Minerals

CXX45 Liddicoatite Tourmaline
Mt Ibity, Antsirabé 2 Dist., Vakinankaratra Region, Antananarivo Prov., Madagascar
3.2x 3.0x 1.8 cm
$58
MSL01 Liddicoatite Tourmaline
Anjanabonoina , Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Prov., Madagascar
1.75x 1.6x 0.15 cm
$195
MSL02 Liddicoatite Tourmaline
Anjanabonoina , Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Prov., Madagascar
1.75x 1.75x 0.15 cm
$155
North America
South America
Africa
Asia/Pacific
Europe
Aquamarines
Pyromorphites
Inner Mongolia
Tourmalines
Fluorite
 
 
Clearance Minerals
Display Aids