Nigerian Blue Spinel

Another update of Nigerain Spinel crystals that have fantastic blue coloration.  They don't get large but the color saturation is outstanding.  These also have a high Zinc content. Analyses has shown them to be 94% Gahnite (ZnAl2O4), the zinc rich member of the Spinel group.



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US$    € EURO    ¥ YEN    £ POUND    CAN$    AUS$    Note


J103 - Spinel $ 150 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.7 x 0.6 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J103a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J103b.jpg]

Single octahedral crystal of cobalt blue Spinel. Chipping along one edge, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.


J104 - Spinel $ 180 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.8 x 0.7 x 0.7 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J104a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J104b.jpg]

Single octahedral crystal of cobalt blue Spinel. Chipping along two edges, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.


J107 - Spinel $ 180 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.5 x 0.5 x 0.5 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J107a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J107b.jpg]

Single octahedral crystal of cobalt blue Spinel. Tiny chip on one tip, otherwise a perfect octahedron with slight edge wear. Transparent crystal of facet quality.


J110 - Spinel $ 175 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.6 x 0.6 x 0.6 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J110a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J110b.jpg]

Single octahedral crystal of cobalt blue Spinel. Chipping on two tips, otherwise a perfect octahedron with slight edge wear. Good transparency.


J111 - Spinel $ 300 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.9 x 0.9 x 0.7 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J111a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J111b.jpg]

Single octahedral crystal of cobalt blue Spinel. Damage to one tip, otherwise a perfect octahedron with slight edge wear. Great color and transparency to this one.


J113 - Spinel $ 160 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.8 x 0.8 x 0.6 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J113a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J113b.jpg]

Single octahedral crystal of cobalt blue Spinel. Though two tips are damaged, it has very little edge wear and good surface luster. Translucent to transparent crystal.


J115 - Spinel $ 190 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.7 x 0.7 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J115a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J115b.jpg]

Single octahedral crystal of cobalt blue Spinel. Damage to two tips but little edge wear and good transparency.


J116 - Spinel $ 175 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.8 x 0.7 x 0.7 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J116a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J116b.jpg]

Single octahedral crystal of cobalt blue Spinel. Chipping on two tips, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.


J118 - Spinel $ 140 SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.7 x 0.6 cm


(click on an image to enlarge)

Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J118a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J118b.jpg]

Single octahedral crystal of cobalt blue Spinel. Chipping on two tips, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.

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