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2.3 grams of table salt (fine) is a small amount that measures 0.081 oz (2.3 g). It is roughly 0.12 tbsp (1.77 mL) in volume and is about the size of a marble.

In kitchen measures
0.359 teaspoons
0.359 tsp · 0.12 tbsp · 0.0075 cups
about the size of a marble
Table salt (fine) typically ranges 1.2–1.4 g/mL depending on how it's packed. A firmly packed scoop weighs more.