A simple search for Google(US) text,
"calcium sulphate from Mars basalt".
The teleconference suggests that the drill found probable high content percentages of calcium sulphate, at location 'John Klein' on Feb. 8, 2013. Yet to be processed through SAM for a final detailed confirmation, if analysis is finally chosen. The team was confident in the long term utilization of the drill device as a method of identification of solid rock type material over the 'Primary Mission' period of two years.
No answers were offered in questions asked about the hydration state of the possible calcium sulphate. Other than the expected source of basalt, no other materials were suggested from initial instrument tests prior to the drill operation.
The drill success was the main content of the announcement, with graphics for the technical operation of sample collection for possible later analysis of powder from drilling.