Benitoite Gem Mine Minerals


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D276 - Neptunite $ 100
Benitoite Gem Mine, San Benito Co., California, USA
small cabinet - 5.5 x 4 x 3 cm


(click on an image to enlarge)

Neptunite from Benitoite Gem Mine, San Benito Co., California, USA [db_pics/pics/D276a.jpg] Neptunite from Benitoite Gem Mine, San Benito Co., California, USA [db_pics/pics/D276b.jpg] Neptunite from Benitoite Gem Mine, San Benito Co., California, USA [db_pics/pics/D276c.jpg] Neptunite from Benitoite Gem Mine, San Benito Co., California, USA [db_pics/pics/D276d.jpg] Neptunite from Benitoite Gem Mine, San Benito Co., California, USA [db_pics/pics/D276e.jpg]

Two Neptunite crystals to 15mm on a schist matrix. Both crystals are perfect, and the smaller crystal is doubly terminated.


CT120 - Neptunite with Joaquinite $ 90
Gem Mine, San Benito Co., California, USA
thumbnail - 3 x 2.2 x 1.5 cm


(click on an image to enlarge)

Neptunite with Joaquinite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT120a.jpg] Neptunite with Joaquinite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT120b.jpg] Neptunite with Joaquinite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT120d.jpg]

Five chunky, well terminated Neptunite crystals on schist matrix.  Largest crysal is 1.4cm. Also present are small brown crystals of the rare mineral Joaquinite.


AR37 - Benitoite $ 120
Benitoite Gem Mine, San Benito County, California
miniature - 3.8 x 2.2 x 1.1 cm


(click on an image to enlarge)

Benitoite from Benitoite Gem Mine, San Benito County, California [db_pics/pics/AR37a.jpg] Benitoite from Benitoite Gem Mine, San Benito County, California [db_pics/pics/AR37b.jpg] Benitoite from Benitoite Gem Mine, San Benito County, California [db_pics/pics/AR37c.jpg] Benitoite from Benitoite Gem Mine, San Benito County, California [db_pics/pics/AR37d.jpg]

Benitoite crystals were occasionally found as 'floaters' that had weathered out of the host crossite amphibole rock matrix. This is an example of a single large crystal with blue-gray color and a rough surface caused by the amphibole inclusions. Even though it's not dark blue in color, it does have the same 'cornflower blue' fluorescent color when seen under shortwave UV lighting.


CT250 - Benitoite $ 950 SOLD
Gem Mine, San Benito Co., California, USA
miniature - 5 x 3.5 x 1.5 cm


(click on an image to enlarge)

Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT250a.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT250b.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT250c.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT250h.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT250i.jpg]

Two blue Benitoite crystals on an island of white Natrolite. Largest Benitoite is 1.7cm. The crystals are deep blue and gemmy at the tips, and undamaged. Recently etched, never before offered for sale.


CT252 - Benitoite with Neptunite $ 600
Gem Mine, San Benito Co., California, USA
small cabinet - 8 x 3.5 x 2.8 cm


(click on an image to enlarge)

Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT252a.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT252b.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT252c.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT252d.jpg]

Blue Benitoite crystals and black Neptunite crystals on white Natrolite over schist. Largest Benitoite is 1.7cm and sits up nicely for display. There is another crystal on the left at 1.5cm and a couple more smaller Benitoite. Main crystal is medium blue and gemmy at the tips, and undamaged. Recently etched, never before offered for sale.


CT254 - Benitoite with Neptunite $ 1500
Gem Mine, San Benito Co., California, USA
miniature - 5 x 4 x 2.7 cm


(click on an image to enlarge)

Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT254a.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT254c.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT254h.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT254l.jpg]

Large blue Benitoite crystals and black Neptunite crystals on white Natrolite over schist. Largest Benitoite is 2.3cm and there is another large, thicker crystal 2cm in size. Main crystal has cavernous growth in the center but is undamaged. Even though some of the Neptunites show contacting from growth into the opposing pocket wall, there are some really nice crystals present, including a neat cluster and a perfect, 2cm double-terminated crystal. Large Benitoite crystals!! Recently etched, never before offered for sale.


CT251 - Benitoite with Neptunite $ 800 SOLD
Gem Mine, San Benito Co., California, USA
miniature - 4.1 x 2.2 x 1.8 cm


(click on an image to enlarge)

Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT251a.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT251b.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT251c.jpg]

Blue Benitoite crystals and black Neptunite crystals on white Natrolite over schist. The two largest Benitoites are 1.5cm and sit up nicely for display. The crystals are deep blue with gem areas and undamaged. Recently etched, never before offered for sale.


CT253 - Benitoite with Neptunite $ 1200 SOLD
Gem Mine, San Benito Co., California, USA
small cabinet - 7.8 x 5 x 2.8 cm


(click on an image to enlarge)

Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT253a.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT253b.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT253c.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT253d.jpg] Benitoite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT253e.jpg]

Numerous blue Benitoite crystals and black Neptunite crystals on white Natrolite over schist. Largest Benitoite is 1.2cm and the longest Neptunite is 2cm. Classic, densely crystallized specimen. Recently etched, never before offered for sale.


CT257 - Benitoite $ 350 SOLD
Gem Mine, San Benito Co., California, USA
thumbnail - 2.8 x 1.8 x 1.2 cm


(click on an image to enlarge)

Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT257a.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT257b.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT257c.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT257d.jpg]

Killer thumbnail featuring a 9mm triply terminated blue Benitoite crystal perched atop white Natrolite and schist. All three terminations well exposed. Undamaged, deep blue with gem zones. Recently etched, never before offered for sale.


CT259 - Benitoite with Joaquinite, Neptunite $ 900 SOLD
Gem Mine, San Benito Co., California, USA
miniature - 5 x 2.8 x 2.5 cm


(click on an image to enlarge)

Benitoite with Joaquinite, Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT259a.jpg] Benitoite with Joaquinite, Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT259b.jpg] Benitoite with Joaquinite, Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT259c.jpg] Benitoite with Joaquinite, Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT259d.jpg]

Numerous blue Benitoite crystals and Joaquinite crystals with a black Neptunite crystals on white Natrolite over schist. Largest Benitoite is 1.1cm and one Benitoite at the top is transparent with significant gem rough, in fact all the crystals have good transparency. Classic, densely crystallized specimen. Recently etched, never before offered for sale.


CT255 - Neptunite $ 130
Gem Mine, San Benito Co., California, USA
small cabinet - 7.8 x 5 x 2.8 cm


(click on an image to enlarge)

Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT255a.jpg] Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT255b.jpg] Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT255d.jpg]

Numerous black Neptunite crystals on white Natrolite over schist. Largest Neptunite is 2.7cm and well terminated. Comes with an old Al McGuinness label and an old Chuck Trantham label showing a then price of $150.


CT256 - Benitoite with Joaquinite, Neptunite $ 220
Gem Mine, San Benito Co., California, USA
small cabinet - 6 x 3.3 x 2 cm


(click on an image to enlarge)

Benitoite with Joaquinite, Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT256a.jpg] Benitoite with Joaquinite, Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT256b.jpg] Benitoite with Joaquinite, Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT256c.jpg]

Highly etched but glassy, tabular Benitoite crystals to 1cm with black Neptunite crystals, small brown Joaquinite crystals on white Natrolite over schist. Classic combination specimen for the locality. Comes with old Chuck Trantham and California Mineral Connection labels.


CT260 - Benitoite $ 450
Gem Mine, San Benito Co., California, USA
thumbnail - 2.5 x 1.5 x 1.2 cm


(click on an image to enlarge)

Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT260a.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT260b.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT260c.jpg]

Cluster of 7 good sized, blue Benitoite crystals on white Natrolite. Largest Benitoite is 1.2cm. Some crystals are contacted along the edges where they grew against schist, but they have good color and are undamaged. Old specimen.


CT262 - Benitoite $ 300 SOLD
Gem Mine, San Benito Co., California, USA
thumbnail - 2.8 x 2.5 x 2 cm


(click on an image to enlarge)

Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT262a.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT262b.jpg] Benitoite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT262c.jpg]

Six blue Benitoite crystals on white Natrolite and schist. Largest Benitoite is 1.3cm. Main crystal is very gemmy along the left half. Old Chuck Trantham specimen acquired by Chuck in 2007.


CT261 - Benitoite on Neptunite $ 200 SOLD
Gem Mine, San Benito Co., California, USA
thumbnail - 1.3 x 0.5 x 0.4 cm


(click on an image to enlarge)

Benitoite on Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT261a.jpg] Benitoite on Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT261b.jpg] Benitoite on Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT261c.jpg]

Small but highly aesthetic specimen of a 5mm triply terminated blue Benitoite crystal on a Neptunite crystal. The Neptunite is only a partial crystal, but the Benitoite crystals are perfect and what matter here. Old specimen.

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