25% off #sale on wall #Art like #posters and #Canvas #Prints:
#Amethyst is #quartz #crystal that has been colored #purple, often due to inclusions of iron in the crystal.
The #Macro #Photograph shows several small, partial #terminations, where the crystal comes to a point.

Get a print of this or another image at https://heronfox.pixels.com/featured/macro-amethyst-surface-2-heron-and-fox.html

#AmethystCrystal, #SiliconDioxide, #SiO2, #QuartzCrystal, #PurpleCrystal, #MacroPhotography,

25% off #sale on wall #Art like #posters and #Canvas #Prints:
A pile of small #Carnelian specimens sitting on a light box.
Carnelian is another type of #SiliconDioxide arranged in a different #crystal structure.
It is technically a form of #chalcedony, colored with #orange, #red, #amber and #yellow hues caused by the inclusion of iron oxide impurities.

Get a print of this image or other items at https://heronfox.pixels.com/featured/small-carnelian-specimens-4-heron-and-fox.html

#MacroPhotography, #Minerology, #StillLife, #Minerals, #Photograph

25% off #Sale on wall #Art like #Posters and #Canvas #Prints

#Amethyst is a type of #quartz, crystalline #silicon dioxide (#SiO2), which contains inclusions of #iron on the #crystal.
This #MacroPhotograph of an amethyst specimen shows the seemingly-chaotic crystal growth.

Get a print of this image at https://heronfox.pixels.com/featured/amethyst-specimen-1-heron-and-fox.html

#Macro, #Photograph, #Photography, #Photo, #Mineral, #SiliconDioxide, #AmethystCrystal

#Blue #Quartz is a form of #SiliconDioxide #crystal.
Impurities in on on the crystal alter its growth.
In the case of #BlueQuartz, the impurity is sodium or even other #silicate materials.

Get a print or other items with this image at https://heronfox.pixels.com/featured/1-blue-quartz-specimen-4-heron-and-fox.html

#MineralPhotography, #Geology, #QuartzCrystals, #Photograph

#Blue #Quartz is a quartz (SiO2) #crystal tinted blue from its usual colorlessness by #sodium or other #silicon-bearing #minerals incorporated into the crystal structure.
This image is a close-up of a blue quartz #specimen.

Get a print with this image, or other merchandise, at https://heronfox.pixels.com/featured/blue-quartz-specimen-3-heron-and-fox.html

#BlueQuartz, #SiliconDioxide, #Geology, #Mineralogy, #Macro, #MacroPhotography, #Photograph

A pile of small #Carnelian specimens sitting on a light box.
Carnelian is another type of #SiliconDioxide arranged in a different #crystal structure.
It is technically a form of #chalcedony, colored with orange, red, amber and yellow hues caused by the inclusion of iron oxide impurities.

Get a print of this image or other items at https://heronfox.pixels.com/featured/small-carnelian-specimens-4-heron-and-fox.html

#MacroPhotography, #Minerology, #StillLife, #Minerals, #Photograph