Can I use crystal + driver(op-amp) to generate waveform
You need a special amplifier to achieve rise times of &lt;5% of 2MHz with a 30 V swing. This means for this assuming potion, slew rate is 30V/(5%*500ns) or greater than 1000 V/us, which we call in electronics world "damn fast". . 

Search for this to find a solution. Note that the power of your load is 30Vx10mA=300mW is small, but the critical factor is your load capacitance.

... perhaps a 74LVC04 5V Xtal osc. driving a logic level common gate FET amp.with +5 to gate and drive source with drain to load and 30V

Vs = +-15 V   AD810
Closed-Loop –3 dB BW
Gain R FB R G ...(MHz)
+10 270 Ω 30.0 Ω 65
–10 249 Ω 24.9 Ω 65