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.



2019-08-17 08:09:17 (PDT): Warning: Cannot modify header information - headers already sent by (output started at /mnt/vol-97eb4796/data/mm/www.marinmineral.com/spinel2.html:62): /mnt/vol-97eb4796/data/mm/www.marinmineral.com/s_present.php: line 37

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


J103 - Spinel $ 150 (=~ € 122) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.7 x 0.6 cm


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 (=~ € 146) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.8 x 0.7 x 0.7 cm


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.


J105 - Spinel $ 170 (=~ € 138)
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.6 x 0.6 cm


Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J105a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J105b.jpg]

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


J107 - Spinel $ 180 (=~ € 146) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.5 x 0.5 x 0.5 cm


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.


J108 - Spinel $ 200 (=~ € 163)
Kagoro, Kaduna State, Nigeria
thumbnail - 0.8 x 0.7 x 0.7 cm


Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J108a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J108b.jpg]

Single octahedral crystal of cobalt blue Spinel. A chip on one tip, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.


J109 - Spinel $ 150 (=~ € 122)
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.7 x 0.6 cm


Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J109a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J109b.jpg]

Single octahedral crystal of cobalt blue Spinel. A chip on one tip, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.


J110 - Spinel $ 175 (=~ € 142) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.6 x 0.6 x 0.6 cm


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 (=~ € 244) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.9 x 0.9 x 0.7 cm


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.


J112 - Spinel $ 150 (=~ € 122)
Kagoro, Kaduna State, Nigeria
thumbnail - 0.6 x 0.6 x 0.4 cm


Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J112a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J112b.jpg]

Spinel-twinned crystal of cobalt blue Spinel. A couple chips are present, otherwise complete all around crystal with good transparency.


J113 - Spinel $ 160 (=~ € 130) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.8 x 0.8 x 0.6 cm


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.


J114 - Spinel $ 200 (=~ € 163)
Kagoro, Kaduna State, Nigeria
thumbnail - 0.8 x 0.8 x 0.7 cm


Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J114a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J114b.jpg]

Single octahedral crystal of cobalt blue Spinel. Good octahedron with slight edge wear and a possible tiny nick to one tip. Translucent to transparent crystal.


J115 - Spinel $ 190 (=~ € 154) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.7 x 0.7 cm


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 (=~ € 142) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.8 x 0.7 x 0.7 cm


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.


J117 - Spinel $ 150 (=~ € 122)
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.7 x 0.6 cm


Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J117a.jpg] Spinel from Kagoro, Kaduna State, Nigeria [db_pics/pics/J117b.jpg]

Single octahedral crystal of cobalt blue Spinel. Chipping 3 tips, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.


J118 - Spinel $ 140 (=~ € 114) SOLD
Kagoro, Kaduna State, Nigeria
thumbnail - 0.7 x 0.7 x 0.6 cm


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.



©2010-2019 Marin Mineral