Pris pr kilo (meget tung stein)

Hakkai Stone is a premium dark bluish-green stone that features smooth edges and a river stone appearance. This aquascaping rock is adorned with irregular holes that make this stone look as though it has been partially consumed by bugs, giving it the nickname “Bug-Eaten Rock”. These holes are produced slowly over time and are caused by natural erosion. Due to its unique looks and interesting character, Hakkai Stone is highly sought after by planted tank enthusiasts throughout and is still a rare commodity in the planted aquarium hobby. Its dark colouration is sure to pop against colourful aquarium plants and in river bed style aquascapes.

Quantity suggestion: 25KG per 100L

Common Name: Hakkai Rock

Name in Japanese: 八海石 (Hakkaishi)

Origin: Japan, specifically from the Japanese Alps region, in the Hakkai mountain area, where its name comes from.

Mineralogical Composition: Hakkai rock is composed mainly of quartz and feldspar, and may contain traces of other minerals such as mica.

Color: Varies from white and grayish tones to darker shades such as black, depending on the amount and type of minerals present.

Texture: The surface of Hakkai rock can be smooth or slightly rough, with an internal crystalline structure that gives it a translucent appearance in some cases.

Specific Weight: Approximately 2.6 - 2.8 g/cm³, similar to other types of granite.

Hardness: Between 6 and 7 on the Mohs scale, which makes it relatively resistant to scratches and wear.