Judging quality
A rock, not a mineral — expect several visible components rather than one uniform material. Color is natural and muted; vivid examples are dyed.
Igneous
Que Sera (Llanite)
A Brazilian rhyolitic rock in soft mottled grey, blue and rose, sold under the trade names que sera and vulcanite. Cuts into calm, cloud-like slabs and spheres.
Care
Durable. Water and cloth.
History & lore
Popularised in the 1990s by Brazilian cutters looking for new decorative stone from the Bahia highlands.
Cultural history, recorded as tradition rather than as medical or scientific claim.
Common questions about Que Sera (Llanite)
- What is Que Sera (Llanite)?
- A Brazilian rhyolitic rock in soft mottled grey, blue and rose, sold under the trade names que sera and vulcanite. Cuts into calm, cloud-like slabs and spheres.
- How hard is Que Sera (Llanite) and what is it made of?
- Que Sera (Llanite) is a Igneous-family mineral with the composition Quartz-feldspar rhyolite. It crystallizes in the — system and rates 6-7 on the Mohs hardness scale. It occurs in grey, blue, pink, multicolor.
- Where does Que Sera (Llanite) come from?
- Notable localities for Que Sera (Llanite) include Bahia, Brazil.
- How do you tell good Que Sera (Llanite) from filler?
- A rock, not a mineral — expect several visible components rather than one uniform material. Color is natural and muted; vivid examples are dyed.
- How do you care for Que Sera (Llanite)?
- Durable. Water and cloth.
See it in person
Photographs only go so far
Both rooms are open six days a week, and there is always someone happy to pull pieces out of the case so you can compare them under the light.