Sold Specimens, Gallery E
ECKER9-1 Eckermannite $18 SOLD
Norra Kärr, Gränna, Jönköping, Småland, Sweden (TL)
6.2 cm x 4.4 cm x 2.3 cm
This specimen consists of green-gray fibers of Eckermannite ([Na][Na2][(Mg,Fe2+)4Al][(OH)2|Si8O22]) mined at the type locality. Eckermannite is a clinoamphibole and an inosilicate. Like the Denisovite above, it probably qualifies as another asbestiform mineral, although the fibers in this specimen are tightly compacted.
EDI9-1 Edingtonite $45 SOLD
River Alkaline Complex, Golden Mining Division
4.1 cm x 5.5 cm x 2 cm; largest crystal = 7 mm
is one of the rarer zeolites, and the Ice River locality is a standard
for the species. The Edingtonites are richly sprinkled on colorless
ELLE9-1 Ellestadite-(Cl) $16 SOLD
Crestmore Quarries, Riverside County, California (TL)
2.6 cm x 2.1 cm x 1.5 cm
Numerous yellow prismatic Ellestadite-(Cl) (Ca10[Cl2|(SO4)3|(SiO4)3]) crystals frozen in blue Calcite (CaCO3) from the type locality.
ELP9-1 Elpidite and Arfvedsonite $22 SOLD
Khan Bodgo Massif, Central Gobi Desert, Mongolia
5.9 cm x 3.5 cm x 4 cm
This chunk of Mongolia contains large orange-brown crystal sections of Elpidite (Na2ZrSi6O15·3H2O) with greenish, fibrous Arfvedsonite [Na][Na2][Fe2+4Fe3+][(OH)2|Si8O22]. High-temperature Elpidites like this one are usually enriched with Ca and K, and are formed in superalkaline granitic massifs. The Khan Bodgo Massif is one of only a few such massifs that are known.
EMQ10-1 Emerald in and on Quartz $56 SOLD
This clear, colorless Quartz specimen features a thin, 4.3-cm, pale Emerald inclusion (barely visible in both photos, going almost the full length of the crystal) and a 1.3-cm exterior Emerald. It also has an interesting imprint of a 1-cm Magnesite crystal that either stayed behind in the pocket or perhaps dissolved before this specimen was found. The Emerald on the exterior of the Quartz fluoresces RED in LWUV!
EMQ10-2 Emerald and Uvite in and on Quartz $52 SOLD
This is a beautifully tortured little piece with a lot of geologic stories to tell. It consists of two water-clear, doubly-terminated and doubly-included Quartz crystals. The crystal on the right has been bent into a curve that nestles the left crystal and entraps a small cluster of Uvites [Ca][(Mg,Fe2+)3][MgAl5][(OH)3|F|(BO3)3|Si6O18], visible as an olive-green smear in the lower photo, center. The right-most crystal has inclusions of long, thin, pale Emerald (Be3(Al,Cr)2Si6O18) threads, visible in the top photo as two straight, almost horizontal lines. The left-most Quartz supports six short, and crudely but nevertheless still doubly-terminated Emeralds on its exterior, as well as a cluster of olive-green Uvites. All Quartz terminations and bend points are either milky or covered with many small faces, attesting to the valiant effort this crystal expended to preserve its form. The Emeralds on the exterior of the Quartz fluoresce red in LWUV, though not as brightly as EMQ10-1.
EMQ10-3 Emerald and Uvite (?) in and on Quartz $15 SOLD
A nice, water-clear, doubly-terminated, Tessin-type Quartz with a 2-mm external Emerald and sub-millimeter inclusions of something dark - Uvites? They're not large enough for me to be sure, even under my maximum magnification in the photo at right. The Emerald on the exterior of the Quartz fluoresces red in LWUV, though not as brightly as EMQ10-1.
ENAG9-1 Enargite $38 SOLD
Guanaco Mine, Guanaco, Santa Catalina, Antofagasta Province, Antofagasta
Sharp metallic Enargite (Cu3AsS4) crystals in vugs and seams.
Ettringite $52 SOLD
Canary-yellow Ettringite Ca6Al2[(OH)4|SO4]3· 26H2O crystals to 6 mm are sprinkled on a thin plate of manganese-rich matrix.
EUC6-1 Euclase on Quartz $75 SOLD
Ouro Preto, Minas Gerais, Southeast Region, Brazil (TL)
4.5 cm x 2 cm x 1.8 cm; Euclase crystal = 1.4 cm x 1 cm
I was very surprised to learn that Ouro Preto is the type locality for Euclase, BeAl[OH|SiO4]. This specimen has a large Euclase crystal embedded in the Quartz matrix. The tip of the crystal is that particular shade of blue that only Euclase seems to acquire, while other portions of the crystal are clear and colorless.
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