stone Natural fossil blue fluorescent amber from Indonesia of a rough [N2 Natural] (blue amber) - (29 "one kind" stone approx. 29g, 64x42x28mm)

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We are selling from Japan. Our Products are Authentic only.

★★★★★★★★★★★ This is unpolished Sumatran blue amber rough. Typical Sumatran amber is from the Miocene epoch (approximately 23-10 million years ago *there is a range of ages for its formation) and is famous for its unique blue fluorescence. This is thought to come from the resin of an extinct tree species (Hymenaea protera). *As this is rough amber that has not been treated for jewelry, it may contain inclusions and rough areas (see image). *The second image is a fluorescent image and the third image is a transmitted image using a light source from below. [Place of Origin: Sumatra, Indonesia] All items are one-of-a-kind, and we will deliver the item you have selected. Please check the images or product name for approximate size. *Images shown may be larger than the actual size. *If you are not satisfied, please instruct us through "Order History" and we will refund your money. [About fluorescence] This product was photographed using a Sankyo Electric black light fluorescent lamp stand (UV-A/Long-Wave/around 365nm). Mainly smooth surfaces fluoresce blue. The blue-purple color in the image is due to the black light (see second image). *UV-A black light, which emits less visible light, will cause the illuminated subject to fluoresce more vividly. Fluorescence can also be made more noticeable by darkening the room and making the background black. *The degree of fluorescence varies from item to item and depends on the wavelength and performance of the black light used. *A black light is not included with this product, so you will need to prepare one separately. *There may be individual differences between products. Also, because these are natural minerals, they may have cloudiness, dirt, scratches, cracks, discoloration, inclusions, or traces of the host rock. *Loose cases, storage boxes, instructions, labels, etc. are not included (they are provided in eco-packages to protect against damage). To search for all N2 stone Natural related products, please search for "N2 stone Natural." "N2 stone" is a registered trademark of N2 (N2 Co., Ltd.). ●When dealing with products created by nature, we strive to provide accurate product information and faithful product images. [About product images] There may be slight differences in color tone, etc. due to differences in the shooting environment (light intensity, color temperature, etc.) and the customer's viewing environment or computer environment. Also, when taking photos, we take them in a brighter environment than normal, so the colors and play-of-color may appear more vivid. When photographing play-of-color in particular, we also adjust the angle of the light. Some minerals, such as fluorescent minerals and fine minerals, are photographed in special environments and with special equipment. [Product information] There may be individual differences between products. Also, because it is made from natural materials, there may be cloudiness, scratches, cracks, inclusions, etc. Because the quality of things created by nature is not consistent, we allow a certain range of quality and carefully select products that are suitable for sale, but there are times when the standards used by humans to judge quality do not match those of our customers. If you are not satisfied, please return the item through "Order History". We will respond sincerely in accordance with Amazon regulations.