Choyas Geodes (Mexican Coconut)
SpiritRock Shop
Excellent solid fill crystal center Choyas Geode. Cut and polished in our shop. This geode has beautiful fortification
lines in a light blue to grayish blue to clear chalcedony with small sagenitic nodules on the outer edge. The lines along
one side give a parallax 3D effect. The quartz crystal center fill has a dark shadow spot, indicating possibly a hollow vug
lies within. A very nice specimen of the "Mexican Coconut"
This specimen measures 2.6 x 2.3 x 1.8 inches (66 x 58 x 46mm) and weighs 0.61 lbs (272g)
Item # MC0508001
2.6" Polished Choyas Geode
(Half)  Solid Crystal Center
$24.00
Quantity Available 1each
Amethyst Center Choyas Geodes are a real favorite among collectors. This specimen has well formed nice size
amethyst crystal points. This is a lavender color amethyst center surrounded by a light blue to bluish grey with clear
lines forming slight parallax effect on the banding. This geode is fluorescent under SW Ultra Violet Light. (photos taken
under a 13W way too cool ultra violet light) The purple in the UV picture is UV light bleed, not a fluorescing color. The
orange is a spot of calcite. The light blue is also not a fluorescing color but a bit of white (which shows blue under UV
light) of an unknown mineral. Cut and polished in our shop.
This large Choyas specimen measures 3.5 x 2.7 x 2 inches (89 x 69 x 51mm) and weighs 0.82 lbs
(370g)                                 
Click on any photo to see a larger version
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Chalcedony fluoresces green under
SW Ultra Violet light
Item # MC0508002
3.5" Polished Choyas Geode
(Half)  Amethyst Crystal Center
$28.00
Quantity Available 1each
Las Choyas Geodes

Las Choyas geodes are also known as Coconut Geodes. They are mined in Chihuahua, Mexico. The geode
pockets are usually located at least 100 feet below the earth’s surface. The geode sizes range from 2 to 6
inches in diameter. These geodes can be hollow, semi-hollow or may also be filled solid with quartz and
agate. (Solid ones are referred to as Nodules) The hollow geodes may have many different types of crystals
inside such as Clear Quartz, Smokey Quartz, and if you are lucky, some amethyst. There may be secondary
minerals or formations such as goethite, hematite, mordenite, calcite, apatite, stalactites, galena crystals to
name a few. Las Choyas Geodes are amazing works of mother earth’s art!
Amethyst Center Choyas Geodes are a real favorite among collectors. This specimen has well
formed nice size crystal points surrounded by a band of amethyst. This is a crystal and lavender
color amethyst center surrounded by a light blue to bluish grey with clear lines forming slight
parallax effect on the banding. Cut and polished in our shop.

This large Choyas specimen measures 4.4 x 4 x 2.2 inches (11.1 x 10.3 x 5.6cm)
and weighs 1.74 lbs (792g)

(The matching half is sold below MC11110081B)
Item # MC11110081A
4.4" Polished Choyas Geode
(Half)  Amethyst Crystal Center
$32.00
Quantity Available 1each
Amethyst Center Choyas Geodes are a real favorite among collectors. This specimen has well
formed nice size crystal points surrounded by a band of amethyst. This is a crystal and lavender
color amethyst center surrounded by a light blue to bluish grey with clear lines forming slight
parallax effect on the banding. Cut and polished in our shop.

This large Choyas specimen measures 4.2 x 3.9 x 1.8 inches (10.7 x 9.9 x 4.7cm)
and weighs 1.21 lbs (552g)

(The matching half is sold above MC11110081A)
Item # MC11110081B
4.2" Polished Choyas Geode
(Half)  Amethyst Crystal Center
$28.00
Quantity Available 1each
Solid Center Choyas Geode. This specimen has a whitecenter surrounded by light
blue to bluish grey with clear lines forming excellent parallax effect on the banding.
(Parallax banding gives the appearance of deep layered depth to a specimen) Cut
and polished in our shop.

This large Choyas specimen measures 4.5 x 4.1 x 2 inches (11.4 x 10.4 x 5cm)
and weighs 28.8oz or  1.8 lbs (817g)
Item # MC03140021
4.5 Inch Polished Choyas Geode Half  
$24.00
Quantity Available 1each
Amethyst Center Choyas Geodes are a real favorite among collectors. This specimen has well formed nice size amethyst
crystal points. This is a lavender color amethyst center surrounded by a light blue to bluish grey with clear lines forming
slight parallax effect on the banding. Cut and polished in our shop.

This Amethyst Choyas specimen measures 3.2 x 2.7 x 1.3 inches (8.1 x 7 x 3.3cm)
                         and weighs 0.45 lbs (206g)                                 
Item # MC1111002
3.2" Polished Choyas
Geode (Half)  Amethyst
Crystal Center
$28.00
Quantity Available 1each
Excellent solid fill crystal center Choyas Geode. Cut and polished in our shop. This geode has beautiful fortification lines in
a light blue to grayish blue to clear chalcedony with small sagenitic nodules on the outer edge. The lines along one side
give a parallax 3D effect. The quartz crystal center fill has a white shadow spot, indicating possibly a vug lies within. A
stunning blend of Chalcedony and quartz!
This specimen measures 3.5 x 3.3 x 1.9 inches (9.1 x 8.5 x 4.8cm) and weighs 0.99 lbs (451g)
Item # MC11110031
3.5" Polished Choyas Geode
(Half)  Solid Crystal Center
$27.00
Quantity Available 1each
Item # MC11119011
2.7" Polished Choyas
Geode (Half)  Solid Center
$22.00
Quantity Available 1each
Excellent solid fill crystal center Choyas Geode. Cut and polished in our shop. This geode has beautiful fortification lines in
a light blue to grayish blue to clear chalcedony with small sagenitic nodules on the outer edge. The fortification lines give a
parallax 3D effect.
This specimen measures 2.7 x 2.4 x 1.5 inches (6.8 x 6.2 x 3.9cm) and weighs 0.49 lbs (223g)