LC-103: 4.4 oz Unique NM Thunderegg Half Glows Red & Green, Fluorescent Minerals

Description

Our most exciting new find in the Deming, NM area has been a unique kind of thunderegg, named
LAVA CAP
and
EGGZILLA
, from private claims in the Deming area.  The formation of the eggs involved a growth of plumes or elongated crystals of calcite with manganese impurities that apparently filled in hollow spots & became embedded in the agate center.
Only a very small fraction of the eggs from the two claims have any embedded calcite, so these are very rare specimens.
This is an
unpolished
Lava Cap
thunderegg half, and one of the few really nice specimens that we have left.  (Most Lava Cap specimens are quite small.)  Photos #2 & 3 were taken in daylight with the rock wet & dry, respectively.  It has an outer shell of pinky-tan
rhyolite and an interior consisting of pale blue agate and needles of crystalline calcite embedded in a black mineral (a manganese oxide).  Note: There is a shallow crack in the shell about 6 mm long, visible at upper left of the specimen in the dry daylight photo.  There are also many tiny cavities that did not fill in with agate or calcite.
Under our 13 watt short wave
Superbright II
lamp, the calcite needles glow
bright red
and the agate glows
bright green
in a beautiful pattern, and the rhyolite a
dull red,
and any black manganese oxide is non-fluorescent.  (See photo #1.)
Photo #4: Looking north toward the Little Florida Mountains.
Photo #5: Looking from the site with the Big Florida Mountains in the distance; east of Deming, NM.
Weighs 4.4 oz. & measures 2.125 x 1.5 x 1.75 inches thick (#LC-103).
Shipping by US Priority Mail.
We are happy to offer combined shipping,
using the appropriate box, when you make multiple purchases.
Just place the items in your shopping cart and then request an invoice with combined shipping.
Please note:  If any buyer overpays for shipping due to buying multiple items, fixed and/or auction format, we will charge only for the cost for shipping in the appropriate box, and we will refund any over-payment to the buyer.  We are required by eBay to ship any items the buyer has paid for, within one business day after payment.
FILMED WITH NIKON COOLPIX 5000 CAMERA AND 13 WATT DC
SUPERBRIGHT II
LAMP (SW).
SHORT WAVE LAMP NEEDED TO VIEW FLUORESCENCE.