EDGARBAILEYITE, CINNABAR
Clear Creek Mine, Southern San Benito County, California
The Clear Creek Mine is one of the three type localities for Edgarbaileyite, the first known silicate of mercury.  This specimen is from the Ed Oyler collection – Edoylerite was also described as a new Hg-bearing mineral species from this locality.  Edgarbaileyite is green to yellow-green, and is almost always found as very thin coatings on the silica-carbonate rock matrix.  On this specimen, the Edgarbaileyite forms a very thin yellow-green coating near the center of the specimen, in an eye-shaped area measuring up to /8” long X 1/2” wide.  Magnification of 10-20X is required for best appreciation of the Edgarbaileyite, as the mineral is always sparse on the matrix.  Massive red Cinnabar surrounds the Edgarbaileyite, and minor micro Montroydite and native Mercury are also present in very small amounts in direct association with the Edgarbaileyite.  For additional background information on Edgarbaileyite, see the following back issues of the “Mineralogical Record” magazine: Vol. 21, P. 215-220 (May-June 1990), and Vol. 36, No. 4, P. 344 (July-Aug. 2005).
Specimen size:  2 5/8” X 2 1/4” across, X  up to 1 3/8” thick
Order Item: MI-1243 
Price:  $45.

LEPIDOCROCITE
Perran Iron Mine, Perranporth, Cornwall, England
Extra rich crystalline/massive, dark red-black veinlets and masses of Lepidocrocite are in / on matrix associated with massive Goethite.  Lepidocrocite is an uncommon iron oxide mineral with the composition:  y-Fe³⁺O(OH)_.  The gram weights are given simply as a measure of size – specimens are not priced by the gram.

MI-1419   Massive and crystalline dark red-black veinlets of Lepidocrocite are in / on Goethite matrix, as noted above.
Specimen size: 1 X 3/4 X 5/8"
Gram weight:  19.11 grams
Price:  $18.00

MI-1420   Same as item A, slightly larger specimen.
Specimen size:  1 1/4 X 7/8 X 3/4"
Gram weight:  24.90 grams
Price:  $20.00

MI-1421  Extra rich specimen with an open vug covering the entire top of the specimen, with the surface showing the botryoidal structure of the Lepidocrocite.  Massive Goethite matrix.
Specimen size: 3 X 2 1/4" across (= approx. the size of the open vuggy area with botryoidal Lepidocrocite) , X 1/2 to 1 1/2" thick
Gram weight:  204.3 grams (7.1 ounce = nearly 1/2 pound)
Price:  $80.00

Very nice, sharp individual euhedral crystal, translucent-opaque dark red-brown in color, without matrix.  Manganotantalite is: (Mn,Fe)(Ta,Nb)₂O₆. 
Specimen size:  20 mm wide (3/4”) X 20 mm tall (3/4”), X 18 mm thick (near 3/4”).
Order Item MI-1554
Price:  $90.

XENOTIME-(Y)
Novo Horizonte, State of Bahia, Brazil
Xenotime-(Y) is a rare earth element-bearing (REE) mineral – a yttrium phosphate.  While it is not an uncommon mineral, Xenotime-(Y) is definitely rare in sharp, translucent-opaque crystals in sizes larger than micromounts!  These crystals were mined circa 1996-1997.  Items A., D. and F. are crystal groups.  Items B., C., E. and G. are single crystals.  The gram weights of the terminated crystal specimens are given as an aid in providing data on the overall size of each specimen.  The pricing is not relative to the gram weight. 

Item H. has a single terminated Xenotime-(Y) crystal (15 X 4 X 3 mm) attached to the front of a group of irregularly formed Quartz crystals.  The largest Quartz crystal is 1 1/2” long, and another Quartz crystal on the specimen is 1” long.  The remainder of the specimen is composed of Quartz crystal sections and massive Quartz, with a very minor amount of crystalline / massive Rutile and Hematite associated on the back of the specimen.  The size of the Quartz crystal group is 2 1/2” X 1 1/2” X 1 1/2”.  Matrix specimens from this locality are very uncommon. 

Items I., J., and K. are non-terminated crystal sections, suitable for reference / systematic collection.  On the crystal sections, the pricing is calculated at $3.00 / gram.

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