Hello folks, I’ve got a few new pieces from my travels I’d like to share with you, following up on a previous adventure in my quest for a dioptase in matrix. I got a bunch of agates (in rough) for my projects, including Montana moss, Lake Superior and crazy lace varieties. In one of my grab bag agate packages, I managed to find a whole garnet too. Score.
Here are some of the latest clear quartz additions…
The top photo is of a delicate cluster sourced from Arkansas. The finely packed naturally terminated points surround a clear sword-like crystal. Beautiful.
The center photo shows a “phantom” quartz. Its name comes from the inclusions showing a faint outline where the crystal terminated before. When the crystal begins growing again, it leaves the “phantom”. I got it for my mom who loves them and who continues to grow in life despite conditions that would have caused others to stop.
The bottom photo shows one of a few twinned pieces I got. Twinning happens when two adjacent crystals share the same geometry and alignment and share a part with another crystal, having grown together.
Above, you’re looking at raw copper. This 2″ piece is very bright with almost no patina. Copper is visually intriguing, with its shiny waves and curious nodes.
Yep, I did it. I found dioptase for the collection. As you can see, it’s a little thumbnail specimen, but the crystals are in great condition, exhibiting that characteristic deep blue-green. Also, it’s cute.
This here is a polished piece of septarian. I didn’t know much of the stone until recently. From Wikipedia.org…
Septarian concretions or septarian nodules, are concretions containing angular cavities or cracks, called “septaria”. The word comes from the Latin word septum; “partition”, and refers to the cracks/separations in this kind of rock. There is an incorrect explanation that it comes from the Latin word for “seven”, septem, referring to the number of cracks that commonly occur. Cracks are highly variable in shape and volume, as well as the degree of shrinkage they indicate. Although it has commonly been assumed that concretions grew incrementally from the inside outwards, the fact that radially oriented cracks taper towards the margins of septarian concretions is taken as evidence that in these cases the periphery was stiffer while the inside was softer, presumably due to a gradient in the amount of cement precipitated.
The process that created the septaria, which characterize septarian concretions, remains a mystery. A number of mechanisms, e.g. the dehydration of clay-rich, gel-rich, or organic-rich cores; shrinkage of the concretion’s center; expansion of gases produced by the decay of organic matter; brittle fracturing or shrinkage of the concretion interior by either earthquakes or compaction; and others, have been proposed for the formation of septaria (Pratt 2001). At this time, it is uncertain, which, if any, of these and other proposed mechanisms is responsible for the formation of septaria in septarian concretions (McBride et al. 2003).
I also helped a friend build a display for her collection, complete with LED lights for the polished labradorite pieces she finished.
That’s it for now. Take care of yourselves out there.