Konyaite is a rare hydrated magnesium sulfate mineral that typically forms as an efflorescent crust in salt lake environments. It is highly unstable and dehydrates easily into other magnesium sulfate minerals, making it a challenge to preserve in collections without humidity control.
Is this konyaite?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch konyaite with a known reference. Konyaite sits at Mohs 2.5, softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Streak: white.
- 3Read the lusterHold the specimen under a strong light. Luster: vitreous.
- 4Match the color rangeCompare against the expected color range: white, colorless.
- 5Look at form & habitCrystal system: monoclinic. Typical habit: fibrous crusts, efflorescences.
Often confused with
Konyaite vs. its common look-alikes, and how to tell them apart in the field.
Often found alongside konyaite
Minerals reported to co-occur with konyaite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Na₂Mg(SO₄)₂·5H₂O
- Mohs hardness
- 2.5
- Density
- 2.088 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Transparent
- Crystal system
- Monoclinic
- Crystal habit
- Fibrous crusts, efflorescences
- Cleavage
- None
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Widespread in salt efflorescences on saline soils, formed between 30°C and 50°C by evaporation of ground and surface waters
Where rockhounds find konyaite
Classic worldwide localities
- Found at many places, North Dakota, USA
- Çakmak, between Ereǧli and Niǧde, Great Konya Basin, Konya Province, Turkey
- Tǎuçoare Cave, Rodna Mountains, Romania
- Noted across central and southern, Alberta, Canada
Field-hunting tip
Where it forms: Widespread in salt efflorescences on saline soils, formed between 30°C and 50°C by evaporation of ground and surface waters. If you start seeing gypsum, hexahydrite, blödite in float, you are in the right ground. Typical habit: fibrous crusts, efflorescences. Train your eye for that shape before scanning the outcrop.







