谷戸峯1号
Yatomine Spring No. 1Operated by · 誠商事有限会社
硫
Sulfate
- Color
- nearly colorless, transparent
- Taste
- tasteless
- Odor
- odorless
Sodium-Calcium Sulfate spring
pH 8.9AlkalineHot source · 71°CTop-decile alkalineHigh silica
Composition fingerprint2.0 g/kg dissolved · Hypotonic
Na⁺75
Ca²⁺23
SO₄²⁻83
Cl⁻16
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Sulfate SO₄²⁻
- "gypsum / Glauber's salt" — vessels and wound healing.
Known good for
- Aches & jointsstiff shoulders
- Circulationtired legs
- Smooth skindry, rough skin
A sodium-calcium sulfate spring emerging at a scalding 71.1 °C, well into Japan's hottest decile of natural sources. Alkaline (pH 8.9) with the slippery beauty-water feel on the skin, and a generous 61.4 mg/kg of metasilicic acid leaves a thin silica film that makes skin feel noticeably smoother afterwards. Quietly mineralized at 2.04 g/kg — settled body rather than aggressive saltiness.
Sampled at wellhead·Analyzed Dec 3, 2019·一般財団法人 静岡県生活科学検査センター·Cert no. 第M19033号
