Sheep Creek Plume Agate - Oregon
This appears to be a vein agate with white plumes near the external borders and more tan to brown plumes in the center. It's a very hard plume agate with many druzy pockets throughout the structure. The more translucent areas of the agate run from white to a pale bluish tint.
Schalenblende (meaning: shell-ore)
This is a mixture of sphalerite and wurtzite in a compact mass with reniform (kidney shaped) structures. It also may contain pyrite and/or galena. Sphalerite (cubic crystal system) and wurtzite (hexagonal crystal system) are both mixed iron-zinc sulfides and usually mined for the zinc content. Both often form nice crystals, but in schalenblende the material formed massively in a vein. Most of this massive material comes from Poland.
Keegan Ranch Tube Agate
Found in Oregon near Prineville, this agate is shared by two ranches in the area. The white tube structures are made up of slightly hydrated silica (opal) and often form around long, thin, crystal structures in the agate. It is sometimes cut as doublet with darker materials as the background to make the tubes standout.
Rare photo of Nauga Fur.
The internet abounds with photos of shaved Naugas, ( http://goo.gl/6ah1qj ). Naugahyde is the standard commercial product made from these once furry creatures. The close up image below, of a Nauga pelt , was taken with a hidden camera just before it was shaved. The bristly hairs make the fur itself quite uncomfortable and of little commercial value. This particular pelt is from a blue Nauga. Naugahyde is collected only after the Nauga dies a natural death, often caused by an accidental puncture wound from its own bristly fur. That's why most Naugas appear shaved in their portraits.
For further useful information see the Wiki article on Naugahyde.
- Dow Chemical Company1974 - 1999
- SVSUContract Teaching, 2001 - 2002
I ended up with a strong interest in chemistry and got my degrees in chemistry with a minor in geology. I found in graduate school that I might even have more interest in geology than chemistry, but I had little interest in the petroleum industry (that 's were most geology jobs were). Thus I took a job with a large Chemical Company and started in polymers and solid state catalyst to make polymers followed thereafter by ceramics and sol-gel chemistry. In undergraduate school, I was always tied to silicon chemistry. Silicon and organo-silicates have been a major part of my continued chemical work.
After 10 years of catalyst and ceramics work I developed a keen interest in personal computers, laboratory automation, and eventually scientific visualization. I presented about 100 times at Macworld Expos, Mactivity conferences and InterOp from 1988-2002. Networking, scientific computing, WEB creation, digital photography and beginning 3D animation.
Through all of this my main hobbies were collecting rocks, photography, and tropical fish. (The fish are no more.) I had a digital camera in 1989 that my company paid for, and it had a whopping 320x240 resolution, and only cost about $3000. I was hooked, with my purchase of a little Macintosh program called "PhotoMat" I was predicting the end of traditional photography. (OK it came about slower than I thought!) PhotoMat was later purchased by a little company called Adobe and they renamed it Photoshop. I opted for early retirement from my Dow carrier in 1999.
I started a WEB site (www.theimage.com) on the early Internet in 1996, it has always been non-commercial and tied to minerals, gemstones and photography. The combination search of "mineral and gem with photography" will almost always get a first page hit on Google. I have about 3000 photos of minerals and gems on the site.
Today I have two microscopes at home with my various camera set ups (virtually all Nikon now) although I used to be all Canon based until about 1997. I worked for a couple of years on producing the information and photos for a book on "Agates and Jaspers". It was published in 2009. I have sold about 1800 of the original 2000 copies.
I am teaching four sessions at the William Holland School in Ga., later this summer 2011 - on digital closeup photography. I am a current member of two Macintosh clubs, one gem and mineral club, and occasional magicians club. My wife and I have two curly coated retrievers, both are therapy dogs.