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Wednesday, April 18, 2012

Druzy, Drusy, Druse, It's All Mesmerizing To Me!

Captivating Geodes Filled With Sparkling Druzy...

The first time I saw a piece of druzy jewelry, I knew I was in it for the long run. I am mesmerized by druzy. The beauty of it, and the science of it. The thought that I am holding or wearing something that has been millions of years in the making just fascinates me. There is no material I enjoy working with more. Druzy popularity has skyrocketed in recent years and it has really become a gemstone in its own genre.

How these sparkling sugary crystals come about is a mystery to many. So I will try to explain as simply as i can.

 Remember this ?(this is the only chart, I promise)

The  constant moving of the earth’s crust and inner layers is responsible for the forming of most of the colored gemstones we see today. Many millions of years ago, as molten rock was being forced up to the surface, heat and pressure changes caused gases to expand and create cavities within the solidifying rock. Gazzillions of years later,  as the ground water,  rich with minerals, (i.e. dissolved silica) moved through the rock, it deposited  new minerals into the cavities, (or on the surfaces) of the rock, and cooling began to occur. Crystallization of these minerals on top of and inside the previously crystallized rock began the unique crystal formation called Druzy. Druzy colors are based on the particular stone that the mineral water leaked into all those years ago.

In the following photo you can see some of the filled cavities and you can see the tightly-packed matrix which creates a dense bed of individual crystals. Notice how each each crystal only has  a single termination pyramid exposed. This bed of crystals has a very fine crystalline structure similar to sugar or salt crystals. This is an "encrustation" crystal habit, or Druzy. This is why it is so sparkly. That pyramid catches light from every which way.

Naturally Occurring Druzy Crystals
There is a wide variety of minerals that can form into druzy. Many of these examples of druzy encrustation are found all over the earth, and their colors listed below represent untreated crystals, unless noted otherwise.
  • Agate Drusy: Brown (Brazil) 
  • Quartz:  clear, white, tan, golden (citrine), and light purple (amethyst)
  • Black Garnet, Psilomelane: Black (Western Australia)
  • Carnelian Drusy (Chalcedony): Orangy-Yellow, Reddish-Brown (Brazil)
  • Chalcedony Drusy: Blue, Lavender (Brazil)
  • Chrysacolla: Greenish-Blue (Australia, Chili, New Mexico USA, Zaire)
  • Cobalto Calcite, Cobaltoan Dolomite: Pink, Rose (DRC Congo, Zaire)
  • Hemimorphite Drusy: Greenish-Blue (Yunnan Province, China)
  • Jasper Drusy: Brownish-Red (Madagascar)
  • Onyx Drusy (Agate): Black (Brazil) *may be dyed
  • Psilomelane Drusy: Indigo Blue (New Mexico USA)
  • Rainbow Hematite Drusy: Rainbow, Brownish-Green (Brazil) *very rare
  • Rainbow Pyrite: Rainbow (Volga River, Russia)
  • Uvarovite Garnet: Forest Green (Ural Mountains, Russia)

Vapor-coating (aka vapor-deposition) is one of the more common gemstone enhancements used to achieve the scintillation and myriad of colors and that are found in druzy quartz jewelry.

Titanium is used to create intense, permanent hues of blue, green, and purple, as well as adding an iridescent (schiller effect) quality and/or play-of-color

Druzy crystal can also be vapor-coated with a variety of other metals to create interesting optical effects. Gold is used to create golden druzy, Platinum is used to create pure white, or silver druzy, and silicone oxide is used to create vibrant pink and green hues.

Some countries have taken to straight out dying druzy. Dyed druzy will fade, unlike vapor coated druzy.

Example of Dyed Druzy

Druzy gemstones are graded using the following criteria---color saturation, crystal size, purity (visual flaws), and crystal coverage (whether areas of underlying matrix shows). The highest grade Druzy is not always the prettiest. These earrings would not be considered high grade  because of the large crystals, but I think they are lovely!

Mink Druzy Earrings - Your Daily Jewels

Same with this pendant with much of the matrix showing. It would be considered "low grade"

Druzy Examples
Black Druzy - Your Daily Jewels (Sold)

Vapor Coated with Gold

Rainbow Hematite - Excessive Handling Can Dull the Natural Coloration Of This Rare Druzy

Druzy Chysocolla

Cobalto Calcite Comes in a Wide Range of Pinks

Now some Jet Druzy~

Agate Druzy Pendant - Your Daily Jewels

Twilight Drusy Ring - Love Stone Arts

Example of Agate Druzy -Your Daily Jewels

Pyrite Druzy Pendant - JemsbyJBandCompany

Asymmetrical Agate Drusy Earrings - Laura Stamper Designs

Thanks for reading!

Oh, this is My Dream Bedroom, (I might need it a little bigger though)
Chalcedony Druzy

Sunday, February 26, 2012

CPR and Lifesaving Techniques for Dogs

Take 5 minutes out of your day, OK, maybe it might be ten minutes, to really commit this to memory: CPR for your precious family member, your dog.

In a Red Cross survey, 89% of adult Americans think it should be mandatory for adults to learn Community CPR and basic life saving techniques. The number who actually keep up their certification falls sadly lower than this percentage.

Mucho Gusto and Sitting Bull - Bull Doggie Brothers - Courtesy of LoveStoneArts

As you can imagine, there are no statistics for canine CPR, yet so many of us  consider our dog a very important member of our family.

Read, understand, and memorize this chart. Practice on your poochie, share it with your family, hang it on your wall, email it to your friends. Look at these guys, how can you not take a few minutes to learn this simple, potentially lifesaving technique.

Good Boy Gus

Gus (mid-haircut when the groomer sent him home, halfway cut, after he was "fresh")

The Magical Face of "Lyric" Courtesy of DebrasDivineDesigns

Tina, My Sweet Girl