高质量燕尾灰黑色石膏 来自托斯卡纳 - 高度: 14 cm - 闊度: 10.3 cm- 143 g

Aesthetic specimen from Pisa Province of Gypsum in a myriad of crystals most of which with a natural dovetail termination in a beautiful grey-black color in graduated shades.
这是一件来自比萨省的石膏美学标本，晶体繁多，大多数在美丽的灰黑色调中自然呈榫槽状终止，呈渐变色。
This is the famous "tube Gypsum". It's a Gyspum that forms completely naturally on the internal walls of disused pipes in which the decantation and waste water from the processing and production of soda flowed
这是著名的 "tube Gypsum"（管状石膏）。它完全自然地在废弃管道的内壁形成，管道中曾流经碱的加工与生产过程中的沉淀与废水。
Origin: Larderello, Pomarance, Pisa Province, Tuscany, Italy
产地：意大利托斯卡纳大区，比萨省帕玛兰采的拉德雷罗。
Size: 14 X 10.3 X 4.2 cm.
尺寸：14 × 10.3 × 4.2 cm。
Weight: 143 Gr.
重量：143 克。

Please keep in mind that photos are taken inside a box with LED lights and that the colors may be slightly different. Detail photos are obviously enlarged to show the particularities at their best.
请注意，照片是在带 LED 灯的盒子内拍摄，颜色可能略有不同。细节照片显然放大，以最好地展示其特征。
If youd nee you can contact us to have videos of the piece taken in daylight
如果你需要，可以联系我们获取在日光下拍摄的该件视频