From a recent, shocking find of new citrines a few years ago, only a few specimens had such sharp twinning - and seem to be the first known citrine japan-law twins. This one is lustrous and transparent with a lovely golden color. The Japan-law-twin of quartz exhibits the typical flattened habit as you see here, with a join angle of just under 90 degrees. Contacts at the terminations detract slight... Read more
Natural citrine crystals are quite rare in nature, and most citrine available on the market is irradiated to produce the color, a ruddy orange. This amber color is natural, though. This specimen of citrine quartz has many things going for it. To start, this citrine is totally facetable! Next, it exhibits hoppered growth at the termination in the form of a thin overhanging secondary growth atop the... Read more
El' Brusskiy (Elbrusskiy) Mine, Northern Caucasus Region, Russia
Small Cabinet, 9.0 x 5.0 x 2.0 cm
You are probably familiar with the bright orange-red plates of orpiment from this locality (there is one in this update). But you probably have not seen specimens from this tiny find, a pocket of GEM Baryte in association with the orpiment! Not many specimens at all came out, and over 90% of them were damaged, partial crystals. This is by far the largest crystal we have seen from the find (mid-200... Read more
Often times, one encounters Citrine gems on the market that were heated to turn them yellow. Typically these stones start out as natural Amethyst and are altered to create the yellow color. This stone is more than likely a heated gem that was once Amethyst. With that said, this stone is very good size, with great color saturation and unique cutting. It is virtually eye clean with a "Modified Marqu... Read more
Thumbnail – Maximum 3.0 cm
Toenail – A “gut feeling” but often overlaps between a large thumbnail and a small miniature
Miniature – Maximum 5.0 cm
Small Cabinet – Maximum 9.4 cm
Cabinet – Maximum 18.0 cm
Large Cabinet – Over 18.0 cm
Using the Search Form
All specimens for sale on the web site are entered into a
database. The search form allows you to specify criterea
to select the specimens you wish to view.
The form has a set of fields for you to fill in. You may fill in one
or more of the fields. If you fill in more than one, then only
specimens satisfying all fields will be returned. (Empty
fields match all specimens).
For the type-in text fields, the value you type in is matched
against the values in the field for each specimen in the database.
Since it's a pattern match, it's ok to type in partial
values. For example, when searching localities, if you simply
enter "China", you'll select all speciments from anywhere in
China. If you type in "Colorado, USA", you'll get all
specimens from the state of Colorado in the United States.
You can limit the search to specimens that were added during
some interval or prior to that interval. For example, selecting
"Before" and "10 Days" will search specimens added prior to the
last 10 days. Selecting "Since" and "10 Days" will search specimens
added during the last 10 days.
Each specimen has a unique alphanumeric ID, for example,
"CK42", or "URI-01". You can limit the search for specimens whose IDs contain a given
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you would like "Partial Matches". For example "K-112" would match
"K-112" and "HECK-112". Or you can uncheck the "Partial Matches"
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Each specimen has a name field. Often the name is just the name
of the primary mineral(s) of the specimen. But in some cases,
there are conventions that can be useful in finding what you are
looking for. For example, all pseudomorph specimens will
the string "after" in their names, so you can find all pseudomorphs
by entering "after" in the Name field. Be aware that the name
field might include variety names ("amethyst", "aquamarine", etc.).
Thus, to be sure of finding all Beryl specimens, select Beryl in the
Mineral field - not in the Name field.
The Species field is different from the Name field, in that it searches
the list of species occurances noted for each specimen. (Not the
species names that happen to be in the specimen name!) It is more
precise than searching for species names in the Name field. For
example, if you search for just "A" in the Name field, you will find
Albites, Amazonites, Azurites, and so on... if you search for
specimens by specifying a Species in the Species
drop-down menu, the only specimens noting a occurance of that species
will be selected. The Species field allows IMA-approved species names,
only. (E.g., you'll find Quartz, but not Amethyst).
The locality field is populated with locality names. Spellings and the
locality hierarchy are generally as presented in the locality listings
Of course, you can also search by any part of the locality name,
for example, "Sweet Home Mine" would find all specimens from a
The Description field seaches in the specimen descriptions.
Since previous owners are usually named in the description,
you can search for "Arthur Montgomery" to look for specimens
sold by the noted American mineralogist (or perhaps even from
Montgomery's personal collection).
Allows you to search based on the specimen sizes.
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Searches are "bookmarkable". After clicking "Search", and
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the search results. If the contents of the database have changed
since the search was originally stored, the results
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